51791496 has 32 divisors (see below), whose sum is σ = 129742560. Its totient is φ = 17228672.

The previous prime is 51791491. The next prime is 51791507. The reversal of 51791496 is 69419715.

It is not an unprimeable number, because it can be changed into a prime (51791491) 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, 11596 + ... + 15428.

It is an arithmetic number, because the mean of its divisors is an integer number (4054455).

Almost surely, 2^51791496 is an apocalyptic number.

It is an amenable number.

51791496 is an abundant number, since it is smaller than the sum of its proper divisors (77951064).

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

51791496 is a wasteful number, since it uses less digits than its factorization.

51791496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4405 (or 4401 counting only the distinct ones).

The product of its digits is 68040, while the sum is 42.

The square root of 51791496 is about 7196.6308784041. The cubic root of 51791496 is about 372.7515733728.

The spelling of 51791496 in words is "fifty-one million, seven hundred ninety-one thousand, four hundred ninety-six".