25621063 has 16 divisors (see below), whose sum is σ = 29675520. Its totient is φ = 21918816.

The previous prime is 25621033. The next prime is 25621067. The reversal of 25621063 is 36012652.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25621063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25621067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10506 + ... + 12712.

It is an arithmetic number, because the mean of its divisors is an integer number (1854720).

Almost surely, 2^25621063 is an apocalyptic number.

25621063 is a deficient number, since it is larger than the sum of its proper divisors (4054457).

25621063 is a wasteful number, since it uses less digits than its factorization.

25621063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 25621063 is about 5061.7252987494. The cubic root of 25621063 is about 294.8033276867.

The spelling of 25621063 in words is "twenty-five million, six hundred twenty-one thousand, sixty-three".