55315669 has 12 divisors (see below), whose sum is σ = 59277504. Its totient is φ = 51599592.

The previous prime is 55315661. The next prime is 55315699. The reversal of 55315669 is 96651355.

It is not a de Polignac number, because 55315669 - 2³ = 55315661 is a prime.

It is a super-2 number, since 2×55315669² = 6119646473835122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55315661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23044 + ... + 25330.

It is an arithmetic number, because the mean of its divisors is an integer number (4939792).

Almost surely, 2^55315669 is an apocalyptic number.

It is an amenable number.

55315669 is a deficient number, since it is larger than the sum of its proper divisors (3961835).

55315669 is a wasteful number, since it uses less digits than its factorization.

55315669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2392 (or 2373 counting only the distinct ones).

The product of its digits is 121500, while the sum is 40.

The square root of 55315669 is about 7437.4504368096. The cubic root of 55315669 is about 381.0214186906.

The spelling of 55315669 in words is "fifty-five million, three hundred fifteen thousand, six hundred sixty-nine".