51497322 has 32 divisors (see below), whose sum is σ = 108546048. Its totient is φ = 16255536.

The previous prime is 51497321. The next prime is 51497323. The reversal of 51497322 is 22379415.

It is an interprime number because it is at equal distance from previous prime (51497321) and next prime (51497323).

It is not an unprimeable number, because it can be changed into a prime (51497321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12403 + ... + 16025.

It is an arithmetic number, because the mean of its divisors is an integer number (3392064).

Almost surely, 2^51497322 is an apocalyptic number.

51497322 is an abundant number, since it is smaller than the sum of its proper divisors (57048726).

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

51497322 is a wasteful number, since it uses less digits than its factorization.

51497322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3754.

The product of its digits is 15120, while the sum is 33.

The square root of 51497322 is about 7176.1634596768. The cubic root of 51497322 is about 372.0444940420.

The spelling of 51497322 in words is "fifty-one million, four hundred ninety-seven thousand, three hundred twenty-two".