25499022 has 16 divisors (see below), whose sum is σ = 51047760. Its totient is φ = 8491392.

The previous prime is 25499021. The next prime is 25499027. The reversal of 25499022 is 22099452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25499021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10104 + ... + 12372.

It is an arithmetic number, because the mean of its divisors is an integer number (3190485).

Almost surely, 2^25499022 is an apocalyptic number.

25499022 is an abundant number, since it is smaller than the sum of its proper divisors (25548738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25499022 is a wasteful number, since it uses less digits than its factorization.

25499022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4147.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 25499022 is about 5049.6556318228. The cubic root of 25499022 is about 294.3345028833.

The spelling of 25499022 in words is "twenty-five million, four hundred ninety-nine thousand, twenty-two".