55694542569 has 4 divisors (see below), whose sum is σ = 74259390096. Its totient is φ = 37129695044.

The previous prime is 55694542499. The next prime is 55694542577. The reversal of 55694542569 is 96524549655.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55694542569 - 2¹¹ = 55694540521 is a prime.

It is a super-2 number, since 2×55694542569² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55694541569) 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, 9282423759 + ... + 9282423764.

It is an arithmetic number, because the mean of its divisors is an integer number (18564847524).

Almost surely, 2^55694542569 is an apocalyptic number.

It is an amenable number.

55694542569 is a deficient number, since it is larger than the sum of its proper divisors (18564847527).

55694542569 is a wasteful number, since it uses less digits than its factorization.

55694542569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18564847526.

The product of its digits is 58320000, while the sum is 60.

The spelling of 55694542569 in words is "fifty-five billion, six hundred ninety-four million, five hundred forty-two thousand, five hundred sixty-nine".