51545996 has 6 divisors (see below), whose sum is σ = 90205500. Its totient is φ = 25772996.

The previous prime is 51545983. The next prime is 51546007. The reversal of 51545996 is 69954515.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6443246 + ... + 6443253.

It is an arithmetic number, because the mean of its divisors is an integer number (15034250).

Almost surely, 2^51545996 is an apocalyptic number.

It is an amenable number.

51545996 is a deficient number, since it is larger than the sum of its proper divisors (38659504).

51545996 is a wasteful number, since it uses less digits than its factorization.

51545996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12886503 (or 12886501 counting only the distinct ones).

The product of its digits is 243000, while the sum is 44.

The square root of 51545996 is about 7179.5540251467. The cubic root of 51545996 is about 372.1616728948.

The spelling of 51545996 in words is "fifty-one million, five hundred forty-five thousand, nine hundred ninety-six".