25745122 has 24 divisors (see below), whose sum is σ = 42558480. Its totient is φ = 11671920.

The previous prime is 25745117. The next prime is 25745141. The reversal of 25745122 is 22154752.

It is a super-2 number, since 2×25745122² = 1325622613589768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19297 + ... + 20587.

It is an arithmetic number, because the mean of its divisors is an integer number (1773270).

Almost surely, 2^25745122 is an apocalyptic number.

25745122 is a deficient number, since it is larger than the sum of its proper divisors (16813358).

25745122 is a wasteful number, since it uses less digits than its factorization.

25745122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378 (or 1365 counting only the distinct ones).

The product of its digits is 5600, while the sum is 28.

The square root of 25745122 is about 5073.9651161592. The cubic root of 25745122 is about 295.2783812864.

Adding to 25745122 its reverse (22154752), we get a palindrome (47899874).

The spelling of 25745122 in words is "twenty-five million, seven hundred forty-five thousand, one hundred twenty-two".