25444090 has 32 divisors (see below), whose sum is σ = 52865280. Its totient is φ = 8636544.

The previous prime is 25444073. The next prime is 25444091. The reversal of 25444090 is 9044452.

It is not an unprimeable number, because it can be changed into a prime (25444091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5446 + ... + 8974.

It is an arithmetic number, because the mean of its divisors is an integer number (1652040).

Almost surely, 2^25444090 is an apocalyptic number.

25444090 is an abundant number, since it is smaller than the sum of its proper divisors (27421190).

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

25444090 is a wasteful number, since it uses less digits than its factorization.

25444090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3646.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 25444090 is about 5044.2135164959. The cubic root of 25444090 is about 294.1229914088.

It can be divided in two parts, 254 and 44090, that added together give a palindrome (44344).

The spelling of 25444090 in words is "twenty-five million, four hundred forty-four thousand, ninety".