22501734725 has 6 divisors (see below), whose sum is σ = 27902151090. Its totient is φ = 18001387760.

The previous prime is 22501734719. The next prime is 22501734727. The reversal of 22501734725 is 52743710522.

It can be written as a sum of positive squares in 3 ways, for example, as 569013316 + 21932721409 = 23854^2 + 148097^2 .

It is not a de Polignac number, because 22501734725 - 2⁴ = 22501734709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22501734727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 450034670 + ... + 450034719.

It is an arithmetic number, because the mean of its divisors is an integer number (4650358515).

Almost surely, 2^22501734725 is an apocalyptic number.

22501734725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22501734725 is a deficient number, since it is larger than the sum of its proper divisors (5400416365).

22501734725 is an equidigital number, since it uses as much as digits as its factorization.

22501734725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900069399 (or 900069394 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 38.

The spelling of 22501734725 in words is "twenty-two billion, five hundred one million, seven hundred thirty-four thousand, seven hundred twenty-five".