55823623 has 2 divisors, whose sum is σ = 55823624. Its totient is φ = 55823622.

The previous prime is 55823569. The next prime is 55823627. The reversal of 55823623 is 32632855.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55823623 is a prime.

It is a super-2 number, since 2×55823623² = 6232553769692258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55823627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27911811 + 27911812.

It is an arithmetic number, because the mean of its divisors is an integer number (27911812).

Almost surely, 2^55823623 is an apocalyptic number.

55823623 is a deficient number, since it is larger than the sum of its proper divisors (1).

55823623 is an equidigital number, since it uses as much as digits as its factorization.

55823623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 34.

The square root of 55823623 is about 7471.5207956613. The cubic root of 55823623 is about 382.1841509532.

The spelling of 55823623 in words is "fifty-five million, eight hundred twenty-three thousand, six hundred twenty-three".