69472525 has 6 divisors (see below), whose sum is σ = 86145962. Its totient is φ = 55578000.

The previous prime is 69472517. The next prime is 69472549. The reversal of 69472525 is 52527496.

It can be written as a sum of positive squares in 3 ways, for example, as 4541161 + 64931364 = 2131^2 + 8058^2 .

It is not a de Polignac number, because 69472525 - 2³ = 69472517 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1389426 + ... + 1389475.

Almost surely, 2^69472525 is an apocalyptic number.

It is an amenable number.

69472525 is a deficient number, since it is larger than the sum of its proper divisors (16673437).

69472525 is a wasteful number, since it uses less digits than its factorization.

69472525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778911 (or 2778906 counting only the distinct ones).

The product of its digits is 151200, while the sum is 40.

The square root of 69472525 is about 8335.0179963813. The cubic root of 69472525 is about 411.0907403401.

The spelling of 69472525 in words is "sixty-nine million, four hundred seventy-two thousand, five hundred twenty-five".