63031512 has 128 divisors (see below), whose sum is σ = 180403200. Its totient is φ = 18229248.

The previous prime is 63031489. The next prime is 63031519. The reversal of 63031512 is 21513036.

It is a super-2 number, since 2×63031512² = 7945943010012288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63031519) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 364258 + ... + 364430.

It is an arithmetic number, because the mean of its divisors is an integer number (1409400).

Almost surely, 2^63031512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63031512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90201600).

63031512 is an abundant number, since it is smaller than the sum of its proper divisors (117371688).

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

63031512 is a wasteful number, since it uses less digits than its factorization.

63031512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 63031512 is about 7939.2387544399. The cubic root of 63031512 is about 397.9720526153.

Adding to 63031512 its reverse (21513036), we get a palindrome (84544548).

The spelling of 63031512 in words is "sixty-three million, thirty-one thousand, five hundred twelve".