63112820 has 24 divisors (see below), whose sum is σ = 135621024. Its totient is φ = 24657696.

The previous prime is 63112801. The next prime is 63112849. The reversal of 63112820 is 2821136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35834 + ... + 37553.

It is an arithmetic number, because the mean of its divisors is an integer number (5650876).

Almost surely, 2^63112820 is an apocalyptic number.

It is an amenable number.

63112820 is an abundant number, since it is smaller than the sum of its proper divisors (72508204).

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

63112820 is a wasteful number, since it uses less digits than its factorization.

63112820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73439 (or 73437 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 63112820 is about 7944.3577462247. The cubic root of 63112820 is about 398.1431014922.

Adding to 63112820 its reverse (2821136), we get a palindrome (65933956).

The spelling of 63112820 in words is "sixty-three million, one hundred twelve thousand, eight hundred twenty".