72051025 has 12 divisors (see below), whose sum is σ = 91759132. Its totient is φ = 56082240.

The previous prime is 72051017. The next prime is 72051029. The reversal of 72051025 is 52015027.

It can be written as a sum of positive squares in 6 ways, for example, as 5089536 + 66961489 = 2256^2 + 8183^2 .

It is not a de Polignac number, because 72051025 - 2³ = 72051017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72050987 and 72051005.

It is not an unprimeable number, because it can be changed into a prime (72051029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38022 + ... + 39871.

Almost surely, 2^72051025 is an apocalyptic number.

It is an amenable number.

72051025 is a deficient number, since it is larger than the sum of its proper divisors (19708107).

72051025 is a wasteful number, since it uses less digits than its factorization.

72051025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77940 (or 77935 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 72051025 is about 8488.2875186930. The cubic root of 72051025 is about 416.1150157351.

The spelling of 72051025 in words is "seventy-two million, fifty-one thousand, twenty-five".