55522007 has 2 divisors, whose sum is σ = 55522008. Its totient is φ = 55522006.

The previous prime is 55522003. The next prime is 55522013. The reversal of 55522007 is 70022555.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55522007 - 2² = 55522003 is a prime.

It is a super-2 number, since 2×55522007² = 6165386522616098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55522001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27761003 + 27761004.

It is an arithmetic number, because the mean of its divisors is an integer number (27761004).

Almost surely, 2^55522007 is an apocalyptic number.

55522007 is a deficient number, since it is larger than the sum of its proper divisors (1).

55522007 is an equidigital number, since it uses as much as digits as its factorization.

55522007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 55522007 is about 7451.3090796182. The cubic root of 55522007 is about 381.4945916999.

The spelling of 55522007 in words is "fifty-five million, five hundred twenty-two thousand, seven".