670505051 has 2 divisors, whose sum is σ = 670505052. Its totient is φ = 670505050.

The previous prime is 670505047. The next prime is 670505053. The reversal of 670505051 is 150505076.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 670505051 - 2² = 670505047 is a prime.

It is a Sophie Germain prime.

Together with 670505053, 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 (670505053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335252525 + 335252526.

It is an arithmetic number, because the mean of its divisors is an integer number (335252526).

Almost surely, 2^670505051 is an apocalyptic number.

670505051 is a deficient number, since it is larger than the sum of its proper divisors (1).

670505051 is an equidigital number, since it uses as much as digits as its factorization.

670505051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 670505051 is about 25894.1122844557. The cubic root of 670505051 is about 875.2538261163.

The spelling of 670505051 in words is "six hundred seventy million, five hundred five thousand, fifty-one".