55711941520 has 40 divisors (see below), whose sum is σ = 130008286080. Its totient is φ = 22202536320.

The previous prime is 55711941491. The next prime is 55711941529. The reversal of 55711941520 is 2514911755.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (55711941529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1263190 + ... + 1306549.

It is an arithmetic number, because the mean of its divisors is an integer number (3250207152).

Almost surely, 2^55711941520 is an apocalyptic number.

It is an amenable number.

55711941520 is an abundant number, since it is smaller than the sum of its proper divisors (74296344560).

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

55711941520 is a wasteful number, since it uses less digits than its factorization.

55711941520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2570023 (or 2570017 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 40.

The spelling of 55711941520 in words is "fifty-five billion, seven hundred eleven million, nine hundred forty-one thousand, five hundred twenty".