70972225 has 6 divisors (see below), whose sum is σ = 88005590. Its totient is φ = 56777760.

The previous prime is 70972217. The next prime is 70972241. The reversal of 70972225 is 52227907.

It can be written as a sum of positive squares in 3 ways, for example, as 22363441 + 48608784 = 4729^2 + 6972^2 .

It is not a de Polignac number, because 70972225 - 2³ = 70972217 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1419420 + ... + 1419469.

Almost surely, 2^70972225 is an apocalyptic number.

It is an amenable number.

70972225 is a deficient number, since it is larger than the sum of its proper divisors (17033365).

70972225 is a wasteful number, since it uses less digits than its factorization.

70972225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2838899 (or 2838894 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 70972225 is about 8424.5014689298. The cubic root of 70972225 is about 414.0277720251.

The spelling of 70972225 in words is "seventy million, nine hundred seventy-two thousand, two hundred twenty-five".