51457036155 has 96 divisors (see below), whose sum is σ = 97800224256. Its totient is φ = 23029687296.

The previous prime is 51457036123. The next prime is 51457036157. The reversal of 51457036155 is 55163075415.

It is not a de Polignac number, because 51457036155 - 2⁵ = 51457036123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51457036157) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8220787 + ... + 8227043.

It is an arithmetic number, because the mean of its divisors is an integer number (1018752336).

Almost surely, 2^51457036155 is an apocalyptic number.

51457036155 is a deficient number, since it is larger than the sum of its proper divisors (46343188101).

51457036155 is a wasteful number, since it uses less digits than its factorization.

51457036155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6513 (or 6506 counting only the distinct ones).

The product of its (nonzero) digits is 315000, while the sum is 42.

It can be divided in two parts, 514570 and 36155, that added together give a triangular number (550725 = T₁₀₄₉).

The spelling of 51457036155 in words is "fifty-one billion, four hundred fifty-seven million, thirty-six thousand, one hundred fifty-five".