55811935937 has 4 divisors (see below), whose sum is σ = 57320366676. Its totient is φ = 54303505200.

The previous prime is 55811935931. The next prime is 55811935967. The reversal of 55811935937 is 73953911855.

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

It can be written as a sum of positive squares in 2 ways, for example, as 45063222961 + 10748712976 = 212281^2 + 103676^2 .

It is a cyclic number.

It is not a de Polignac number, because 55811935937 - 2⁶ = 55811935873 is a prime.

It is a super-3 number, since 3×55811935937³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55811935931) 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, 754215314 + ... + 754215387.

It is an arithmetic number, because the mean of its divisors is an integer number (14330091669).

Almost surely, 2^55811935937 is an apocalyptic number.

It is an amenable number.

55811935937 is a deficient number, since it is larger than the sum of its proper divisors (1508430739).

55811935937 is a wasteful number, since it uses less digits than its factorization.

55811935937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508430738.

The product of its digits is 5103000, while the sum is 56.

The spelling of 55811935937 in words is "fifty-five billion, eight hundred eleven million, nine hundred thirty-five thousand, nine hundred thirty-seven".