55967391387 has 6 divisors (see below), whose sum is σ = 80841787572. Its totient is φ = 37311594252.

The previous prime is 55967391383. The next prime is 55967391391. The reversal of 55967391387 is 78319376955.

55967391387 is a `hidden beast` number, since 5 + 596 + 7 + 3 + 9 + 1 + 38 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (55967391383) and next prime (55967391391).

It is not a de Polignac number, because 55967391387 - 2² = 55967391383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55967391383) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3109299513 + ... + 3109299530.

It is an arithmetic number, because the mean of its divisors is an integer number (13473631262).

Almost surely, 2^55967391387 is an apocalyptic number.

55967391387 is a deficient number, since it is larger than the sum of its proper divisors (24874396185).

55967391387 is a wasteful number, since it uses less digits than its factorization.

55967391387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6218599049 (or 6218599046 counting only the distinct ones).

The product of its digits is 42865200, while the sum is 63.

The spelling of 55967391387 in words is "fifty-five billion, nine hundred sixty-seven million, three hundred ninety-one thousand, three hundred eighty-seven".