51879090 has 32 divisors (see below), whose sum is σ = 124882560. Its totient is φ = 13793024.

The previous prime is 51879083. The next prime is 51879131. The reversal of 51879090 is 9097815.

It is a happy number.

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, 8362 + ... + 13178.

It is an arithmetic number, because the mean of its divisors is an integer number (3902580).

Almost surely, 2^51879090 is an apocalyptic number.

51879090 is an abundant number, since it is smaller than the sum of its proper divisors (73003470).

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

51879090 is a wasteful number, since it uses less digits than its factorization.

51879090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5186.

The product of its (nonzero) digits is 22680, while the sum is 39.

The square root of 51879090 is about 7202.7140717927. The cubic root of 51879090 is about 372.9615976296.

The spelling of 51879090 in words is "fifty-one million, eight hundred seventy-nine thousand, ninety".