51246556 has 24 divisors (see below), whose sum is σ = 92927520. Its totient is φ = 24710400.

The previous prime is 51246541. The next prime is 51246557. The reversal of 51246556 is 65564215.

It is a super-2 number, since 2×51246556² = 5252419003722272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51246557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12841 + ... + 16351.

It is an arithmetic number, because the mean of its divisors is an integer number (3871980).

Almost surely, 2^51246556 is an apocalyptic number.

It is an amenable number.

51246556 is a deficient number, since it is larger than the sum of its proper divisors (41680964).

51246556 is a wasteful number, since it uses less digits than its factorization.

51246556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3645 (or 3643 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The square root of 51246556 is about 7158.6699882031. The cubic root of 51246556 is about 371.4396214520.

The spelling of 51246556 in words is "fifty-one million, two hundred forty-six thousand, five hundred fifty-six".