72252025 has 6 divisors (see below), whose sum is σ = 89592542. Its totient is φ = 57801600.

The previous prime is 72252017. The next prime is 72252029. The reversal of 72252025 is 52025227.

It can be written as a sum of positive squares in 3 ways, for example, as 25644096 + 46607929 = 5064^2 + 6827^2 .

It is not a de Polignac number, because 72252025 - 2³ = 72252017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 2890081 = 72252025 / (7 + 2 + 2 + 5 + 2 + 0 + 2 + 5).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72252029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1445016 + ... + 1445065.

Almost surely, 2^72252025 is an apocalyptic number.

It is an amenable number.

72252025 is a deficient number, since it is larger than the sum of its proper divisors (17340517).

72252025 is a wasteful number, since it uses less digits than its factorization.

72252025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2890091 (or 2890086 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 72252025 is about 8500.1191168124. The cubic root of 72252025 is about 416.5016003939.

It can be divided in two parts, 7225 and 2025, that multiplied together give a square (14630625 = 3825²).

The spelling of 72252025 in words is "seventy-two million, two hundred fifty-two thousand, twenty-five".