55232621207 has 2 divisors, whose sum is σ = 55232621208. Its totient is φ = 55232621206.

The previous prime is 55232621179. The next prime is 55232621221. The reversal of 55232621207 is 70212623255.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55232621207 - 2²⁰ = 55231572631 is a prime.

It is a super-2 number, since 2×55232621207² (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 (55232621287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27616310603 + 27616310604.

It is an arithmetic number, because the mean of its divisors is an integer number (27616310604).

Almost surely, 2^55232621207 is an apocalyptic number.

55232621207 is a deficient number, since it is larger than the sum of its proper divisors (1).

55232621207 is an equidigital number, since it uses as much as digits as its factorization.

55232621207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 55232621207 in words is "fifty-five billion, two hundred thirty-two million, six hundred twenty-one thousand, two hundred seven".