55102405505 has 32 divisors (see below), whose sum is σ = 75768168960. Its totient is φ = 37685099520.

The previous prime is 55102405489. The next prime is 55102405559. The reversal of 55102405505 is 50550420155.

It is not a de Polignac number, because 55102405505 - 2⁴ = 55102405489 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40486025 + ... + 40487385.

It is an arithmetic number, because the mean of its divisors is an integer number (2367755280).

Almost surely, 2^55102405505 is an apocalyptic number.

It is an amenable number.

55102405505 is a deficient number, since it is larger than the sum of its proper divisors (20665763455).

55102405505 is a wasteful number, since it uses less digits than its factorization.

55102405505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3569.

The product of its (nonzero) digits is 25000, while the sum is 32.

The spelling of 55102405505 in words is "fifty-five billion, one hundred two million, four hundred five thousand, five hundred five".