51204670 has 64 divisors (see below), whose sum is σ = 107951616. Its totient is φ = 17297280.

The previous prime is 51204649. The next prime is 51204721. The reversal of 51204670 is 7640215.

51204670 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93337 + ... + 93883.

It is an arithmetic number, because the mean of its divisors is an integer number (1686744).

Almost surely, 2^51204670 is an apocalyptic number.

51204670 is an abundant number, since it is smaller than the sum of its proper divisors (56746946).

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

51204670 is a wasteful number, since it uses less digits than its factorization.

51204670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 51204670 is about 7155.7438467290. The cubic root of 51204670 is about 371.3383960436.

Adding to 51204670 its reverse (7640215), we get a palindrome (58844885).

The spelling of 51204670 in words is "fifty-one million, two hundred four thousand, six hundred seventy".