55550955501 has 6 divisors (see below), whose sum is σ = 80240269070. Its totient is φ = 37033970328.

The previous prime is 55550955491. The next prime is 55550955529. The reversal of 55550955501 is 10555905555.

55550955501 is a `hidden beast` number, since 5 + 5 + 5 + 5 + 0 + 95 + 550 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 29927270025 + 25623685476 = 172995^2 + 160074^2 .

It is not a de Polignac number, because 55550955501 - 2⁹ = 55550954989 is a prime.

It is a super-2 number, since 2×55550955501² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55550950501) 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, 3086164186 + ... + 3086164203.

Almost surely, 2^55550955501 is an apocalyptic number.

It is an amenable number.

55550955501 is a deficient number, since it is larger than the sum of its proper divisors (24689313569).

55550955501 is a wasteful number, since it uses less digits than its factorization.

55550955501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6172328395 (or 6172328392 counting only the distinct ones).

The product of its (nonzero) digits is 703125, while the sum is 45.

The spelling of 55550955501 in words is "fifty-five billion, five hundred fifty million, nine hundred fifty-five thousand, five hundred one".