70252525 has 18 divisors (see below), whose sum is σ = 101337450. Its totient is φ = 48172320.

The previous prime is 70252513. The next prime is 70252531. The reversal of 70252525 is 52525207.

It can be written as a sum of positive squares in 3 ways, for example, as 5900041 + 64352484 = 2429^2 + 8022^2 .

It is not a de Polignac number, because 70252525 - 2⁵ = 70252493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70252493 and 70252502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 27450 + ... + 29899.

Almost surely, 2^70252525 is an apocalyptic number.

It is an amenable number.

70252525 is a deficient number, since it is larger than the sum of its proper divisors (31084925).

70252525 is a wasteful number, since it uses less digits than its factorization.

70252525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57373 (or 57361 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 70252525 is about 8381.6779346381. The cubic root of 70252525 is about 412.6235197892.

The spelling of 70252525 in words is "seventy million, two hundred fifty-two thousand, five hundred twenty-five".