51119904 has 48 divisors (see below), whose sum is σ = 146391840. Its totient is φ = 15490560.

The previous prime is 51119863. The next prime is 51119911. The reversal of 51119904 is 40991115.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×51119904² = 5226489169938432, which contains 22 as substring.

It is a congruent number.

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, 23149 + ... + 25260.

It is an arithmetic number, because the mean of its divisors is an integer number (3049830).

Almost surely, 2^51119904 is an apocalyptic number.

It is an amenable number.

51119904 is an abundant number, since it is smaller than the sum of its proper divisors (95271936).

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

51119904 is a wasteful number, since it uses less digits than its factorization.

51119904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48433 (or 48425 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 30.

The square root of 51119904 is about 7149.8184592338. The cubic root of 51119904 is about 371.1333740162.

The spelling of 51119904 in words is "fifty-one million, one hundred nineteen thousand, nine hundred four".