25223994 has 32 divisors (see below), whose sum is σ = 56306880. Its totient is φ = 8370000.

The previous prime is 25223993. The next prime is 25224011. The reversal of 25223994 is 49932252.

It is not an unprimeable number, because it can be changed into a prime (25223993) 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 15 ways as a sum of consecutive naturals, for example, 12624 + ... + 14484.

It is an arithmetic number, because the mean of its divisors is an integer number (1759590).

Almost surely, 2^25223994 is an apocalyptic number.

25223994 is an abundant number, since it is smaller than the sum of its proper divisors (31082886).

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

25223994 is a wasteful number, since it uses less digits than its factorization.

25223994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123 (or 2117 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 25223994 is about 5022.3494502075. The cubic root of 25223994 is about 293.2724618295.

The spelling of 25223994 in words is "twenty-five million, two hundred twenty-three thousand, nine hundred ninety-four".