51101000577 has 32 divisors (see below), whose sum is σ = 82651484160. Its totient is φ = 30946300560.

The previous prime is 51101000569. The next prime is 51101000597. The reversal of 51101000577 is 77500010115.

It is not a de Polignac number, because 51101000577 - 2³ = 51101000569 is a prime.

It is a super-2 number, since 2×51101000577² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 51101000577.

It is not an unprimeable number, because it can be changed into a prime (51101000597) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 320968 + ... + 453014.

It is an arithmetic number, because the mean of its divisors is an integer number (2582858880).

Almost surely, 2^51101000577 is an apocalyptic number.

It is an amenable number.

51101000577 is a deficient number, since it is larger than the sum of its proper divisors (31550483583).

51101000577 is a wasteful number, since it uses less digits than its factorization.

51101000577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133370 (or 133364 counting only the distinct ones).

The product of its (nonzero) digits is 1225, while the sum is 27.

The spelling of 51101000577 in words is "fifty-one billion, one hundred one million, five hundred seventy-seven", and thus it is an aban number.