55357007 has 2 divisors, whose sum is σ = 55357008. Its totient is φ = 55357006.

The previous prime is 55356991. The next prime is 55357009. The reversal of 55357007 is 70075355.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55357007 - 2⁴ = 55356991 is a prime.

Together with 55357009, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55357009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27678503 + 27678504.

It is an arithmetic number, because the mean of its divisors is an integer number (27678504).

Almost surely, 2^55357007 is an apocalyptic number.

55357007 is a deficient number, since it is larger than the sum of its proper divisors (1).

55357007 is an equidigital number, since it uses as much as digits as its factorization.

55357007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18375, while the sum is 32.

The square root of 55357007 is about 7440.2289615307. The cubic root of 55357007 is about 381.1163088713.

The spelling of 55357007 in words is "fifty-five million, three hundred fifty-seven thousand, seven".