55624523869 has 2 divisors, whose sum is σ = 55624523870. Its totient is φ = 55624523868.

The previous prime is 55624523837. The next prime is 55624523893. The reversal of 55624523869 is 96832542655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29723484025 + 25901039844 = 172405^2 + 160938^2 .

It is a cyclic number.

It is not a de Polignac number, because 55624523869 - 2⁵ = 55624523837 is a prime.

It is a super-2 number, since 2×55624523869² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55624523809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27812261934 + 27812261935.

It is an arithmetic number, because the mean of its divisors is an integer number (27812261935).

Almost surely, 2^55624523869 is an apocalyptic number.

It is an amenable number.

55624523869 is a deficient number, since it is larger than the sum of its proper divisors (1).

55624523869 is an equidigital number, since it uses as much as digits as its factorization.

55624523869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552000, while the sum is 55.

The spelling of 55624523869 in words is "fifty-five billion, six hundred twenty-four million, five hundred twenty-three thousand, eight hundred sixty-nine".