25490264 has 8 divisors (see below), whose sum is σ = 47794260. Its totient is φ = 12745128.

The previous prime is 25490263. The next prime is 25490281. The reversal of 25490264 is 46209452.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 25490264.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25490263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1593134 + ... + 1593149.

Almost surely, 2^25490264 is an apocalyptic number.

It is an amenable number.

25490264 is a deficient number, since it is larger than the sum of its proper divisors (22303996).

25490264 is a wasteful number, since it uses less digits than its factorization.

25490264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3186289 (or 3186285 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 25490264 is about 5048.7883695002. The cubic root of 25490264 is about 294.3008012410.

The spelling of 25490264 in words is "twenty-five million, four hundred ninety thousand, two hundred sixty-four".