70566725 has 6 divisors (see below), whose sum is σ = 87502770. Its totient is φ = 56453360.

The previous prime is 70566707. The next prime is 70566731. The reversal of 70566725 is 52766507.

It can be written as a sum of positive squares in 3 ways, for example, as 8755681 + 61811044 = 2959^2 + 7862^2 .

It is not a de Polignac number, because 70566725 - 2⁸ = 70566469 is a prime.

It is a super-3 number, since 3×70566725³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1411310 + ... + 1411359.

It is an arithmetic number, because the mean of its divisors is an integer number (14583795).

Almost surely, 2^70566725 is an apocalyptic number.

It is an amenable number.

70566725 is a deficient number, since it is larger than the sum of its proper divisors (16936045).

70566725 is a wasteful number, since it uses less digits than its factorization.

70566725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2822679 (or 2822674 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 70566725 is about 8400.4002880815. The cubic root of 70566725 is about 413.2377492441.

The spelling of 70566725 in words is "seventy million, five hundred sixty-six thousand, seven hundred twenty-five".