30722425 has 12 divisors (see below), whose sum is σ = 38983120. Its totient is φ = 24005520.

The previous prime is 30722401. The next prime is 30722429. The reversal of 30722425 is 52422703.

It is not a de Polignac number, because 30722425 - 2¹⁵ = 30689657 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 30722425.

It is not an unprimeable number, because it can be changed into a prime (30722429) 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, 13215 + ... + 15364.

Almost surely, 2^30722425 is an apocalyptic number.

It is an amenable number.

30722425 is a deficient number, since it is larger than the sum of its proper divisors (8260695).

30722425 is a wasteful number, since it uses less digits than its factorization.

30722425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28632 (or 28627 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 30722425 is about 5542.7813415288. The cubic root of 30722425 is about 313.1976520090.

The spelling of 30722425 in words is "thirty million, seven hundred twenty-two thousand, four hundred twenty-five".