55391473311 has 16 divisors (see below), whose sum is σ = 74299653120. Its totient is φ = 36705977280.

The previous prime is 55391473307. The next prime is 55391473331. The reversal of 55391473311 is 11337419355.

It is a happy number.

It is not a de Polignac number, because 55391473311 - 2² = 55391473307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55391473331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378051 + ... + 503691.

It is an arithmetic number, because the mean of its divisors is an integer number (4643728320).

Almost surely, 2^55391473311 is an apocalyptic number.

55391473311 is a deficient number, since it is larger than the sum of its proper divisors (18908179809).

55391473311 is a wasteful number, since it uses less digits than its factorization.

55391473311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126526.

The product of its digits is 170100, while the sum is 42.

The spelling of 55391473311 in words is "fifty-five billion, three hundred ninety-one million, four hundred seventy-three thousand, three hundred eleven".