55325507 has 2 divisors, whose sum is σ = 55325508. Its totient is φ = 55325506.

The previous prime is 55325489. The next prime is 55325509. The reversal of 55325507 is 70552355.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55325507 - 2⁶ = 55325443 is a prime.

Together with 55325509, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55325509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27662753 + 27662754.

It is an arithmetic number, because the mean of its divisors is an integer number (27662754).

Almost surely, 2^55325507 is an apocalyptic number.

55325507 is a deficient number, since it is larger than the sum of its proper divisors (1).

55325507 is an equidigital number, since it uses as much as digits as its factorization.

55325507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26250, while the sum is 32.

The square root of 55325507 is about 7438.1117899639. Note that the first 3 decimals coincide. The cubic root of 55325507 is about 381.0440058199.

The spelling of 55325507 in words is "fifty-five million, three hundred twenty-five thousand, five hundred seven".