55749591937 has 8 divisors (see below), whose sum is σ = 63569670696. Its totient is φ = 48434034432.

The previous prime is 55749591913. The next prime is 55749591941. The reversal of 55749591937 is 73919594755.

It can be written as a sum of positive squares in 4 ways, for example, as 1737972721 + 54011619216 = 41689^2 + 232404^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55749591937 - 2⁷ = 55749591809 is a prime.

It is a super-2 number, since 2×55749591937² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55749591907) 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, 126130078 + ... + 126130519.

It is an arithmetic number, because the mean of its divisors is an integer number (7946208837).

Almost surely, 2^55749591937 is an apocalyptic number.

It is an amenable number.

55749591937 is a deficient number, since it is larger than the sum of its proper divisors (7820078759).

55749591937 is a wasteful number, since it uses less digits than its factorization.

55749591937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252260627.

The product of its digits is 53581500, while the sum is 64.

The spelling of 55749591937 in words is "fifty-five billion, seven hundred forty-nine million, five hundred ninety-one thousand, nine hundred thirty-seven".