70571051 has 2 divisors, whose sum is σ = 70571052. Its totient is φ = 70571050.

The previous prime is 70571009. The next prime is 70571057. The reversal of 70571051 is 15017507.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70571051 - 2⁶ = 70570987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70571051.

It is not a weakly prime, because it can be changed into another prime (70571057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35285525 + 35285526.

It is an arithmetic number, because the mean of its divisors is an integer number (35285526).

Almost surely, 2^70571051 is an apocalyptic number.

70571051 is a deficient number, since it is larger than the sum of its proper divisors (1).

70571051 is an equidigital number, since it uses as much as digits as its factorization.

70571051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1225, while the sum is 26.

The square root of 70571051 is about 8400.6577718652. The cubic root of 70571051 is about 413.2461934033.

Adding to 70571051 its reverse (15017507), we get a palindrome (85588558).

The spelling of 70571051 in words is "seventy million, five hundred seventy-one thousand, fifty-one".