25722554 has 16 divisors (see below), whose sum is σ = 45329760. Its totient is φ = 10792560.

The previous prime is 25722551. The next prime is 25722559. The reversal of 25722554 is 45522752.

It is a self number, because there is not a number n which added to its sum of digits gives 25722554.

It is not an unprimeable number, because it can be changed into a prime (25722551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44684 + ... + 45255.

It is an arithmetic number, because the mean of its divisors is an integer number (2833110).

Almost surely, 2^25722554 is an apocalyptic number.

25722554 is a deficient number, since it is larger than the sum of its proper divisors (19607206).

25722554 is a wasteful number, since it uses less digits than its factorization.

25722554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89965.

The product of its digits is 28000, while the sum is 32.

The square root of 25722554 is about 5071.7407268117. The cubic root of 25722554 is about 295.1920763854.

The spelling of 25722554 in words is "twenty-five million, seven hundred twenty-two thousand, five hundred fifty-four".