55520900023 has 2 divisors, whose sum is σ = 55520900024. Its totient is φ = 55520900022.

The previous prime is 55520900011. The next prime is 55520900047. The reversal of 55520900023 is 32000902555.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55520900023 - 2⁵ = 55520899991 is a prime.

It is a super-2 number, since 2×55520900023² (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 (55520900063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27760450011 + 27760450012.

It is an arithmetic number, because the mean of its divisors is an integer number (27760450012).

Almost surely, 2^55520900023 is an apocalyptic number.

55520900023 is a deficient number, since it is larger than the sum of its proper divisors (1).

55520900023 is an equidigital number, since it uses as much as digits as its factorization.

55520900023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13500, while the sum is 31.

The spelling of 55520900023 in words is "fifty-five billion, five hundred twenty million, nine hundred thousand, twenty-three".