51497496 has 24 divisors (see below), whose sum is σ = 139472580. Its totient is φ = 17165808.

The previous prime is 51497431. The next prime is 51497497. The reversal of 51497496 is 69479415.

51497496 is a `hidden beast` number, since 514 + 97 + 49 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51497497) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 357550 + ... + 357693.

Almost surely, 2^51497496 is an apocalyptic number.

It is an amenable number.

51497496 is an abundant number, since it is smaller than the sum of its proper divisors (87975084).

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

51497496 is a wasteful number, since it uses less digits than its factorization.

51497496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715255 (or 715248 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 51497496 is about 7176.1755831362. The cubic root of 51497496 is about 372.0449130649.

The spelling of 51497496 in words is "fifty-one million, four hundred ninety-seven thousand, four hundred ninety-six".