51100557 has 16 divisors (see below), whose sum is σ = 71885760. Its totient is φ = 32199552.

The previous prime is 51100547. The next prime is 51100561. The reversal of 51100557 is 75500115.

It is not a de Polignac number, because 51100557 - 2⁷ = 51100429 is a prime.

It is a super-2 number, since 2×51100557² = 5222533851420498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51100547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34443 + ... + 35895.

It is an arithmetic number, because the mean of its divisors is an integer number (4492860).

Almost surely, 2^51100557 is an apocalyptic number.

51100557 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

51100557 is a deficient number, since it is larger than the sum of its proper divisors (20785203).

51100557 is a wasteful number, since it uses less digits than its factorization.

51100557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2092.

The product of its (nonzero) digits is 875, while the sum is 24.

The square root of 51100557 is about 7148.4653597818. The cubic root of 51100557 is about 371.0865480062.

The spelling of 51100557 in words is "fifty-one million, one hundred thousand, five hundred fifty-seven".