22535725 has 6 divisors (see below), whose sum is σ = 27944330. Its totient is φ = 18028560.

The previous prime is 22535717. The next prime is 22535731. The reversal of 22535725 is 52753522.

It can be written as a sum of positive squares in 3 ways, for example, as 736164 + 21799561 = 858^2 + 4669^2 .

It is not a de Polignac number, because 22535725 - 2³ = 22535717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 450690 + ... + 450739.

Almost surely, 2^22535725 is an apocalyptic number.

22535725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22535725 is a deficient number, since it is larger than the sum of its proper divisors (5408605).

22535725 is an equidigital number, since it uses as much as digits as its factorization.

22535725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901439 (or 901434 counting only the distinct ones).

The product of its digits is 21000, while the sum is 31.

The square root of 22535725 is about 4747.1807422933. The cubic root of 22535725 is about 282.4601452639.

The spelling of 22535725 in words is "twenty-two million, five hundred thirty-five thousand, seven hundred twenty-five".