63113280 has 112 divisors (see below), whose sum is σ = 207385920. Its totient is φ = 16242688.

The previous prime is 63113273. The next prime is 63113287. The reversal of 63113280 is 8231136.

It is an interprime number because it is at equal distance from previous prime (63113273) and next prime (63113287).

It is a super-2 number, since 2×63113280² = 7966572224716800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 63113280.

It is not an unprimeable number, because it can be changed into a prime (63113287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26707 + ... + 28973.

It is an arithmetic number, because the mean of its divisors is an integer number (1851660).

Almost surely, 2^63113280 is an apocalyptic number.

63113280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63113280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103692960).

63113280 is an abundant number, since it is smaller than the sum of its proper divisors (144272640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63113280 is a wasteful number, since it uses less digits than its factorization.

63113280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2316 (or 2306 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 63113280 is about 7944.3866975368. The cubic root of 63113280 is about 398.1440687831.

It can be divided in two parts, 6311 and 3280, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 63113280 in words is "sixty-three million, one hundred thirteen thousand, two hundred eighty".