51255404 has 12 divisors (see below), whose sum is σ = 90300000. Its totient is φ = 25455408.

The previous prime is 51255401. The next prime is 51255439. The reversal of 51255404 is 40455215.

It is a super-3 number, since 3×51255404³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (51255401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42404 + ... + 43595.

It is an arithmetic number, because the mean of its divisors is an integer number (7525000).

Almost surely, 2^51255404 is an apocalyptic number.

It is an amenable number.

51255404 is a deficient number, since it is larger than the sum of its proper divisors (39044596).

51255404 is a wasteful number, since it uses less digits than its factorization.

51255404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86152 (or 86150 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 51255404 is about 7159.2879534211. The cubic root of 51255404 is about 371.4609972537.

The spelling of 51255404 in words is "fifty-one million, two hundred fifty-five thousand, four hundred four".