55207539693 has 24 divisors (see below), whose sum is σ = 80595207680. Its totient is φ = 36412947360.

The previous prime is 55207539689. The next prime is 55207539697. The reversal of 55207539693 is 39693570255.

55207539693 is a `hidden beast` number, since 5 + 520 + 7 + 53 + 9 + 69 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (55207539689) and next prime (55207539697).

It is not a de Polignac number, because 55207539693 - 2² = 55207539689 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55207539697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 963108 + ... + 1018818.

Almost surely, 2^55207539693 is an apocalyptic number.

It is an amenable number.

55207539693 is a deficient number, since it is larger than the sum of its proper divisors (25387667987).

55207539693 is a wasteful number, since it uses less digits than its factorization.

55207539693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56889 (or 56886 counting only the distinct ones).

The product of its (nonzero) digits is 7654500, while the sum is 54.

The spelling of 55207539693 in words is "fifty-five billion, two hundred seven million, five hundred thirty-nine thousand, six hundred ninety-three".