72025285 has 4 divisors (see below), whose sum is σ = 86430348. Its totient is φ = 57620224.

The previous prime is 72025271. The next prime is 72025319. The reversal of 72025285 is 58252027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58252027 = 631 ⋅92317.

It can be written as a sum of positive squares in 2 ways, for example, as 35034561 + 36990724 = 5919^2 + 6082^2 .

It is a cyclic number.

It is not a de Polignac number, because 72025285 - 2¹⁵ = 71992517 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 3 ways as a sum of consecutive naturals, for example, 7202524 + ... + 7202533.

It is an arithmetic number, because the mean of its divisors is an integer number (21607587).

Almost surely, 2^72025285 is an apocalyptic number.

It is an amenable number.

72025285 is a deficient number, since it is larger than the sum of its proper divisors (14405063).

72025285 is a wasteful number, since it uses less digits than its factorization.

72025285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14405062.

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 72025285 is about 8486.7711763662. The cubic root of 72025285 is about 416.0654579103.

The spelling of 72025285 in words is "seventy-two million, twenty-five thousand, two hundred eighty-five".