55570007 has 2 divisors, whose sum is σ = 55570008. Its totient is φ = 55570006.

The previous prime is 55569979. The next prime is 55570019. The reversal of 55570007 is 70007555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55570007 - 2¹⁰ = 55568983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55570057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27785003 + 27785004.

It is an arithmetic number, because the mean of its divisors is an integer number (27785004).

Almost surely, 2^55570007 is an apocalyptic number.

55570007 is a deficient number, since it is larger than the sum of its proper divisors (1).

55570007 is an equidigital number, since it uses as much as digits as its factorization.

55570007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6125, while the sum is 29.

The square root of 55570007 is about 7454.5292943284. The cubic root of 55570007 is about 381.6044968646.

The spelling of 55570007 in words is "fifty-five million, five hundred seventy thousand, seven".