55345541511 has 32 divisors (see below), whose sum is σ = 81204092928. Its totient is φ = 33316600320.

The previous prime is 55345541497. The next prime is 55345541549. The reversal of 55345541511 is 11514554355.

It is not a de Polignac number, because 55345541511 - 2²⁶ = 55278432647 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 55345541511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55345541551) 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, 4038591 + ... + 4052271.

It is an arithmetic number, because the mean of its divisors is an integer number (2537627904).

Almost surely, 2^55345541511 is an apocalyptic number.

55345541511 is a deficient number, since it is larger than the sum of its proper divisors (25858551417).

55345541511 is a wasteful number, since it uses less digits than its factorization.

55345541511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15951.

The product of its digits is 150000, while the sum is 39.

The spelling of 55345541511 in words is "fifty-five billion, three hundred forty-five million, five hundred forty-one thousand, five hundred eleven".