51990576 has 40 divisors (see below), whose sum is σ = 146520384. Its totient is φ = 15754560.

The previous prime is 51990571. The next prime is 51990577. The reversal of 51990576 is 67509915.

It is not an unprimeable number, because it can be changed into a prime (51990571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48706 + ... + 49761.

Almost surely, 2^51990576 is an apocalyptic number.

It is an amenable number.

51990576 is an abundant number, since it is smaller than the sum of its proper divisors (94529808).

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

51990576 is a wasteful number, since it uses less digits than its factorization.

51990576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98489 (or 98483 counting only the distinct ones).

The product of its (nonzero) digits is 85050, while the sum is 42.

The square root of 51990576 is about 7210.4490844884. The cubic root of 51990576 is about 373.2285661238.

The spelling of 51990576 in words is "fifty-one million, nine hundred ninety thousand, five hundred seventy-six".