55696971 has 16 divisors (see below), whose sum is σ = 81139968. Its totient is φ = 33703200.

The previous prime is 55696933. The next prime is 55696973. The reversal of 55696971 is 17969655.

It is not a de Polignac number, because 55696971 - 2¹⁰ = 55695947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55696971.

It is not an unprimeable number, because it can be changed into a prime (55696973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36106 + ... + 37616.

It is an arithmetic number, because the mean of its divisors is an integer number (5071248).

Almost surely, 2^55696971 is an apocalyptic number.

55696971 is a deficient number, since it is larger than the sum of its proper divisors (25442997).

55696971 is a wasteful number, since it uses less digits than its factorization.

55696971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2642.

The product of its digits is 510300, while the sum is 48.

The square root of 55696971 is about 7463.0403321971. The cubic root of 55696971 is about 381.8949004106.

It can be divided in two parts, 556969 and 71, that added together give a triangular number (557040 = T₁₀₅₅).

The spelling of 55696971 in words is "fifty-five million, six hundred ninety-six thousand, nine hundred seventy-one".