55525523 has 2 divisors, whose sum is σ = 55525524. Its totient is φ = 55525522.

The previous prime is 55525511. The next prime is 55525537. The reversal of 55525523 is 32552555.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55525523 - 2⁴ = 55525507 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55525523.

It is not a weakly prime, because it can be changed into another prime (55525573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27762761 + 27762762.

It is an arithmetic number, because the mean of its divisors is an integer number (27762762).

Almost surely, 2^55525523 is an apocalyptic number.

55525523 is a deficient number, since it is larger than the sum of its proper divisors (1).

55525523 is an equidigital number, since it uses as much as digits as its factorization.

55525523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37500, while the sum is 32.

The square root of 55525523 is about 7451.5450075806. The cubic root of 55525523 is about 381.5026444028.

It can be divided in two parts, 5552552 and 3, that added together give a palindrome (5552555).

The spelling of 55525523 in words is "fifty-five million, five hundred twenty-five thousand, five hundred twenty-three".