63425280 has 144 divisors (see below), whose sum is σ = 206035200. Its totient is φ = 16625664.

The previous prime is 63425269. The next prime is 63425281. The reversal of 63425280 is 8252436.

It is a super-2 number, since 2×63425280² = 8045532286156800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63425281) 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, 318621 + ... + 318819.

It is an arithmetic number, because the mean of its divisors is an integer number (1430800).

Almost surely, 2^63425280 is an apocalyptic number.

63425280 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 63425280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103017600).

63425280 is an abundant number, since it is smaller than the sum of its proper divisors (142609920).

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

63425280 is a wasteful number, since it uses less digits than its factorization.

63425280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 63425280 is about 7963.9989954796. The cubic root of 63425280 is about 398.7990646609.

The spelling of 63425280 in words is "sixty-three million, four hundred twenty-five thousand, two hundred eighty".