55213430355 has 32 divisors (see below), whose sum is σ = 98169477120. Its totient is φ = 29443482720.

The previous prime is 55213430351. The next prime is 55213430357. The reversal of 55213430355 is 55303431255.

55213430355 is a `hidden beast` number, since 5 + 5 + 213 + 430 + 3 + 5 + 5 = 666.

It is not a de Polignac number, because 55213430355 - 2² = 55213430351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55213430351) 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, 1320094 + ... + 1361276.

It is an arithmetic number, because the mean of its divisors is an integer number (3067796160).

Almost surely, 2^55213430355 is an apocalyptic number.

55213430355 is a deficient number, since it is larger than the sum of its proper divisors (42956046765).

55213430355 is a wasteful number, since it uses less digits than its factorization.

55213430355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51128 (or 51122 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

The spelling of 55213430355 in words is "fifty-five billion, two hundred thirteen million, four hundred thirty thousand, three hundred fifty-five".