51537251056 has 10 divisors (see below), whose sum is σ = 99853423952. Its totient is φ = 25768625520.

The previous prime is 51537251033. The next prime is 51537251057. The reversal of 51537251056 is 65015273515.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51537251057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610539080 + ... + 1610539111.

Almost surely, 2^51537251056 is an apocalyptic number.

It is an amenable number.

51537251056 is a deficient number, since it is larger than the sum of its proper divisors (48316172896).

51537251056 is a wasteful number, since it uses less digits than its factorization.

51537251056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3221078199 (or 3221078193 counting only the distinct ones).

The product of its (nonzero) digits is 157500, while the sum is 40.

The spelling of 51537251056 in words is "fifty-one billion, five hundred thirty-seven million, two hundred fifty-one thousand, fifty-six".