55555506510 has 64 divisors (see below), whose sum is σ = 152404319232. Its totient is φ = 12696443136.

The previous prime is 55555506493. The next prime is 55555506511. The reversal of 55555506510 is 1560555555.

It is a super-3 number, since 3×55555506510³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55555506511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1681914 + ... + 1714626.

It is an arithmetic number, because the mean of its divisors is an integer number (2381317488).

Almost surely, 2^55555506510 is an apocalyptic number.

55555506510 is an abundant number, since it is smaller than the sum of its proper divisors (96848812722).

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

55555506510 is a wasteful number, since it uses less digits than its factorization.

55555506510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40817.

The product of its (nonzero) digits is 468750, while the sum is 42.

The spelling of 55555506510 in words is "fifty-five billion, five hundred fifty-five million, five hundred six thousand, five hundred ten".