63290520 has 144 divisors (see below), whose sum is σ = 217535760. Its totient is φ = 15956352.

The previous prime is 63290519. The next prime is 63290527. The reversal of 63290520 is 2509236.

63290520 is a `hidden beast` number, since 632 + 9 + 0 + 5 + 20 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63290527) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 129717 + ... + 130203.

It is an arithmetic number, because the mean of its divisors is an integer number (1510665).

Almost surely, 2^63290520 is an apocalyptic number.

63290520 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 63290520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108767880).

63290520 is an abundant number, since it is smaller than the sum of its proper divisors (154245240).

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

63290520 is a wasteful number, since it uses less digits than its factorization.

63290520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 63290520 is about 7955.5339229998. The cubic root of 63290520 is about 398.5164209525.

Adding to 63290520 its reverse (2509236), we get a palindrome (65799756).

The spelling of 63290520 in words is "sixty-three million, two hundred ninety thousand, five hundred twenty".