53012812 has 48 divisors (see below), whose sum is σ = 102816000. Its totient is φ = 23817024.

The previous prime is 53012809. The next prime is 53012833. The reversal of 53012812 is 21821035.

It is a super-2 number, since 2×53012812² = 5620716472294688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147489 + ... + 147847.

It is an arithmetic number, because the mean of its divisors is an integer number (2142000).

Almost surely, 2^53012812 is an apocalyptic number.

It is an amenable number.

53012812 is a deficient number, since it is larger than the sum of its proper divisors (49803188).

53012812 is a wasteful number, since it uses less digits than its factorization.

53012812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 53012812 is about 7280.9897678818. The cubic root of 53012812 is about 375.6588406144.

Adding to 53012812 its reverse (21821035), we get a palindrome (74833847).

It can be divided in two parts, 53012 and 812, that added together give a square (53824 = 232²).

The spelling of 53012812 in words is "fifty-three million, twelve thousand, eight hundred twelve".