55384475 has 6 divisors (see below), whose sum is σ = 68676780. Its totient is φ = 44307560.

The previous prime is 55384457. The next prime is 55384493. The reversal of 55384475 is 57448355.

It is an interprime number because it is at equal distance from previous prime (55384457) and next prime (55384493).

It is a de Polignac number, because none of the positive numbers 2^k-55384475 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1107665 + ... + 1107714.

It is an arithmetic number, because the mean of its divisors is an integer number (11446130).

Almost surely, 2^55384475 is an apocalyptic number.

55384475 is a deficient number, since it is larger than the sum of its proper divisors (13292305).

55384475 is a wasteful number, since it uses less digits than its factorization.

55384475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215389 (or 2215384 counting only the distinct ones).

The product of its digits is 336000, while the sum is 41.

The square root of 55384475 is about 7442.0746435386. The cubic root of 55384475 is about 381.1793347485.

The spelling of 55384475 in words is "fifty-five million, three hundred eighty-four thousand, four hundred seventy-five".