25621254 has 12 divisors (see below), whose sum is σ = 55512756. Its totient is φ = 8540412.

The previous prime is 25621237. The next prime is 25621259. The reversal of 25621254 is 45212652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25621259) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 711684 + ... + 711719.

It is an arithmetic number, because the mean of its divisors is an integer number (4626063).

Almost surely, 2^25621254 is an apocalyptic number.

25621254 is an abundant number, since it is smaller than the sum of its proper divisors (29891502).

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

25621254 is a wasteful number, since it uses less digits than its factorization.

25621254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423411 (or 1423408 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 25621254 is about 5061.7441657990. The cubic root of 25621254 is about 294.8040602519.

The spelling of 25621254 in words is "twenty-five million, six hundred twenty-one thousand, two hundred fifty-four".