22302725 has 24 divisors (see below), whose sum is σ = 29638728. Its totient is φ = 16588800.

The previous prime is 22302701. The next prime is 22302739. The reversal of 22302725 is 52720322.

It can be written as a sum of positive squares in 12 ways, for example, as 4468996 + 17833729 = 2114^2 + 4223^2 .

It is not a de Polignac number, because 22302725 - 2¹⁰ = 22301701 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22302725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40955 + ... + 41495.

It is an arithmetic number, because the mean of its divisors is an integer number (1234947).

Almost surely, 2^22302725 is an apocalyptic number.

22302725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22302725 is a deficient number, since it is larger than the sum of its proper divisors (7336003).

22302725 is a wasteful number, since it uses less digits than its factorization.

22302725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 22302725 is about 4722.5760978517. The cubic root of 22302725 is about 281.4833060001.

The spelling of 22302725 in words is "twenty-two million, three hundred two thousand, seven hundred twenty-five".