55493023761 has 144 divisors (see below), whose sum is σ = 98323230720. Its totient is φ = 30039932160.

The previous prime is 55493023757. The next prime is 55493023783. The reversal of 55493023761 is 16732039455.

55493023761 is a `hidden beast` number, since 5 + 549 + 30 + 2 + 3 + 76 + 1 = 666.

It is not a de Polignac number, because 55493023761 - 2² = 55493023757 is a prime.

It is a super-2 number, since 2×55493023761² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55493023661) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 126407580 + ... + 126408018.

Almost surely, 2^55493023761 is an apocalyptic number.

It is an amenable number.

55493023761 is a deficient number, since it is larger than the sum of its proper divisors (42830206959).

55493023761 is a wasteful number, since it uses less digits than its factorization.

55493023761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 45.

The spelling of 55493023761 in words is "fifty-five billion, four hundred ninety-three million, twenty-three thousand, seven hundred sixty-one".