51100587 has 6 divisors (see below), whose sum is σ = 73811972. Its totient is φ = 34067052.

The previous prime is 51100583. The next prime is 51100601. The reversal of 51100587 is 78500115.

It is not a de Polignac number, because 51100587 - 2² = 51100583 is a prime.

It is a super-2 number, since 2×51100587² = 5222539983489138, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51100587.

It is not an unprimeable number, because it can be changed into a prime (51100583) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2838913 + ... + 2838930.

Almost surely, 2^51100587 is an apocalyptic number.

51100587 is a deficient number, since it is larger than the sum of its proper divisors (22711385).

51100587 is a wasteful number, since it uses less digits than its factorization.

51100587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5677849 (or 5677846 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

The square root of 51100587 is about 7148.4674581339. The cubic root of 51100587 is about 371.0866206251.

The spelling of 51100587 in words is "fifty-one million, one hundred thousand, five hundred eighty-seven".