55187800351 has 4 divisors (see below), whose sum is σ = 56533844304. Its totient is φ = 53841756400.

The previous prime is 55187800337. The next prime is 55187800357. The reversal of 55187800351 is 15300878155.

It is a happy number.

55187800351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55187800351 - 2³⁵ = 20828061983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55187800298 and 55187800307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55187800357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 673021915 + ... + 673021996.

It is an arithmetic number, because the mean of its divisors is an integer number (14133461076).

Almost surely, 2^55187800351 is an apocalyptic number.

55187800351 is a deficient number, since it is larger than the sum of its proper divisors (1346043953).

55187800351 is a wasteful number, since it uses less digits than its factorization.

55187800351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346043952.

The product of its (nonzero) digits is 168000, while the sum is 43.

The spelling of 55187800351 in words is "fifty-five billion, one hundred eighty-seven million, eight hundred thousand, three hundred fifty-one".