55100538 has 12 divisors (see below), whose sum is σ = 119384538. Its totient is φ = 18366840.

The previous prime is 55100537. The next prime is 55100557. The reversal of 55100538 is 83500155.

It can be written as a sum of positive squares in only one way, i.e., 53187849 + 1912689 = 7293^2 + 1383^2 .

It is not an unprimeable number, because it can be changed into a prime (55100531) 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, 1530553 + ... + 1530588.

Almost surely, 2^55100538 is an apocalyptic number.

55100538 is an abundant number, since it is smaller than the sum of its proper divisors (64284000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55100538 is a wasteful number, since it uses less digits than its factorization.

55100538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3061149 (or 3061146 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 55100538 is about 7422.9736628928. The cubic root of 55100538 is about 380.5268269865.

The spelling of 55100538 in words is "fifty-five million, one hundred thousand, five hundred thirty-eight".