70407969025 has 9 divisors (see below), whose sum is σ = 87307526761. Its totient is φ = 56325313840.

The previous prime is 70407968999. The next prime is 70407969089. The reversal of 70407969025 is 52096970407.

The square root of 70407969025 is 265345.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 18029238529 + 52378730496 = 134273^2 + 228864^2 .

It is not a de Polignac number, because 70407969025 - 2¹⁵ = 70407936257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70407969025.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1300191 + ... + 1353259.

Almost surely, 2^70407969025 is an apocalyptic number.

70407969025 is the 265345-th square number.

70407969025 is the 132673-rd centered octagonal number.

It is an amenable number.

70407969025 is a deficient number, since it is larger than the sum of its proper divisors (16899557736).

70407969025 is an frugal number, since it uses more digits than its factorization.

70407969025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106148 (or 53074 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 49.

Multiplying 70407969025 by its sum of digits (49), we get a square (3449990482225 = 1857415²).

The spelling of 70407969025 in words is "seventy billion, four hundred seven million, nine hundred sixty-nine thousand, twenty-five".