51555142915336 has 32 divisors (see below), whose sum is σ = 102377628186840. Its totient is φ = 24255197805568.

The previous prime is 51555142915271. The next prime is 51555142915337. The reversal of 51555142915336 is 63351924155515.

It can be written as a sum of positive squares in 4 ways, for example, as 48278789510436 + 3276353404900 = 6948294^2 + 1810070^2 .

It is a super-2 number, since 2×51555142915336² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51555142915337) 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, 46685971 + ... + 47777506.

Almost surely, 2^{51555142915336} is an apocalyptic number.

It is an amenable number.

51555142915336 is a deficient number, since it is larger than the sum of its proper divisors (50822485271504).

51555142915336 is a wasteful number, since it uses less digits than its factorization.

51555142915336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94467513 (or 94467509 counting only the distinct ones).

The product of its digits is 12150000, while the sum is 55.

The spelling of 51555142915336 in words is "fifty-one trillion, five hundred fifty-five billion, one hundred forty-two million, nine hundred fifteen thousand, three hundred thirty-six".