55897713 has 12 divisors (see below), whose sum is σ = 82923828. Its totient is φ = 36257760.

The previous prime is 55897693. The next prime is 55897729. The reversal of 55897713 is 31779855.

55897713 is a `hidden beast` number, since 558 + 97 + 7 + 1 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 51022449 + 4875264 = 7143^2 + 2208^2 .

It is not a de Polignac number, because 55897713 - 2¹⁶ = 55832177 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55897783) 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, 83598 + ... + 84263.

It is an arithmetic number, because the mean of its divisors is an integer number (6910319).

Almost surely, 2^55897713 is an apocalyptic number.

It is an amenable number.

55897713 is a deficient number, since it is larger than the sum of its proper divisors (27026115).

55897713 is a wasteful number, since it uses less digits than its factorization.

55897713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167904 (or 167901 counting only the distinct ones).

The product of its digits is 264600, while the sum is 45.

The square root of 55897713 is about 7476.4773122106. The cubic root of 55897713 is about 382.3531565002.

The spelling of 55897713 in words is "fifty-five million, eight hundred ninety-seven thousand, seven hundred thirteen".