51543696 has 40 divisors (see below), whose sum is σ = 133741440. Its totient is φ = 17105536.

The previous prime is 51543691. The next prime is 51543733. The reversal of 51543696 is 69634515.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (51543691) 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, 9226 + ... + 13718.

It is an arithmetic number, because the mean of its divisors is an integer number (3343536).

Almost surely, 2^51543696 is an apocalyptic number.

It is an amenable number.

51543696 is an abundant number, since it is smaller than the sum of its proper divisors (82197744).

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

51543696 is a wasteful number, since it uses less digits than its factorization.

51543696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4743 (or 4737 counting only the distinct ones).

The product of its digits is 97200, while the sum is 39.

The square root of 51543696 is about 7179.3938462798. The cubic root of 51543696 is about 372.1561374854.

The spelling of 51543696 in words is "fifty-one million, five hundred forty-three thousand, six hundred ninety-six".