55678975 has 24 divisors (see below), whose sum is σ = 78602112. Its totient is φ = 38728800.

The previous prime is 55678933. The next prime is 55678979. The reversal of 55678975 is 57987655.

It is not a de Polignac number, because 55678975 - 2¹⁵ = 55646207 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 (55678979) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1924 + ... + 10726.

It is an arithmetic number, because the mean of its divisors is an integer number (3275088).

Almost surely, 2^55678975 is an apocalyptic number.

55678975 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55678975 is a deficient number, since it is larger than the sum of its proper divisors (22923137).

55678975 is a wasteful number, since it uses less digits than its factorization.

55678975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8847 (or 8842 counting only the distinct ones).

The product of its digits is 2646000, while the sum is 52.

The square root of 55678975 is about 7461.8345599457. The cubic root of 55678975 is about 381.8537651936.

The spelling of 55678975 in words is "fifty-five million, six hundred seventy-eight thousand, nine hundred seventy-five".