55598507 has 2 divisors, whose sum is σ = 55598508. Its totient is φ = 55598506.

The previous prime is 55598453. The next prime is 55598513. The reversal of 55598507 is 70589555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55598507 - 2⁶ = 55598443 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55598707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27799253 + 27799254.

It is an arithmetic number, because the mean of its divisors is an integer number (27799254).

Almost surely, 2^55598507 is an apocalyptic number.

55598507 is a deficient number, since it is larger than the sum of its proper divisors (1).

55598507 is an equidigital number, since it uses as much as digits as its factorization.

55598507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 315000, while the sum is 44.

The square root of 55598507 is about 7456.4406388035. The cubic root of 55598507 is about 381.6697231141.

The spelling of 55598507 in words is "fifty-five million, five hundred ninety-eight thousand, five hundred seven".