51497082 has 96 divisors (see below), whose sum is σ = 138902400. Its totient is φ = 13426560.

The previous prime is 51497059. The next prime is 51497113. The reversal of 51497082 is 28079415.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 243957 + ... + 244167.

It is an arithmetic number, because the mean of its divisors is an integer number (1446900).

Almost surely, 2^51497082 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51497082, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69451200).

51497082 is an abundant number, since it is smaller than the sum of its proper divisors (87405318).

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

51497082 is a wasteful number, since it uses less digits than its factorization.

51497082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 51497082 is about 7176.1467376302. The cubic root of 51497082 is about 372.0439160779.

The spelling of 51497082 in words is "fifty-one million, four hundred ninety-seven thousand, eighty-two".