51579808 has 48 divisors (see below), whose sum is σ = 116544960. Its totient is φ = 22012416.

The previous prime is 51579799. The next prime is 51579839. The reversal of 51579808 is 80897515.

It is a super-3 number, since 3×51579808³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91335 + ... + 91897.

It is an arithmetic number, because the mean of its divisors is an integer number (2428020).

Almost surely, 2^51579808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51579808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58272480).

51579808 is an abundant number, since it is smaller than the sum of its proper divisors (64965152).

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

51579808 is a wasteful number, since it uses less digits than its factorization.

51579808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989 (or 981 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 43.

The square root of 51579808 is about 7181.9083814819. The cubic root of 51579808 is about 372.2430292305.

The spelling of 51579808 in words is "fifty-one million, five hundred seventy-nine thousand, eight hundred eight".