55562623 has 2 divisors, whose sum is σ = 55562624. Its totient is φ = 55562622.

The previous prime is 55562621. The next prime is 55562657. The reversal of 55562623 is 32626555.

It is an a-pointer prime, because the next prime (55562657) can be obtained adding 55562623 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55562623 - 2¹ = 55562621 is a prime.

Together with 55562621, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55562621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27781311 + 27781312.

It is an arithmetic number, because the mean of its divisors is an integer number (27781312).

Almost surely, 2^55562623 is an apocalyptic number.

55562623 is a deficient number, since it is larger than the sum of its proper divisors (1).

55562623 is an equidigital number, since it uses as much as digits as its factorization.

55562623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54000, while the sum is 34.

The square root of 55562623 is about 7454.0340085084. The cubic root of 55562623 is about 381.5875939070.

The spelling of 55562623 in words is "fifty-five million, five hundred sixty-two thousand, six hundred twenty-three".