51649496 has 32 divisors (see below), whose sum is σ = 99033840. Its totient is φ = 25246848.

The previous prime is 51649487. The next prime is 51649511. The reversal of 51649496 is 69494615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92450 + ... + 93006.

Almost surely, 2^51649496 is an apocalyptic number.

It is an amenable number.

51649496 is a deficient number, since it is larger than the sum of its proper divisors (47384344).

51649496 is a wasteful number, since it uses less digits than its factorization.

51649496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803 (or 799 counting only the distinct ones).

The product of its digits is 233280, while the sum is 44.

The square root of 51649496 is about 7186.7583791303. The cubic root of 51649496 is about 372.4105960836.

The spelling of 51649496 in words is "fifty-one million, six hundred forty-nine thousand, four hundred ninety-six".