25938655 has 12 divisors (see below), whose sum is σ = 31522392. Its totient is φ = 20489040.

The previous prime is 25938637. The next prime is 25938659. The reversal of 25938655 is 55683952.

25938655 = 1308² + 1309² + ... + 1322².

It is not a de Polignac number, because 25938655 - 2¹⁷ = 25807583 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 (25938659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130246 + ... + 130444.

It is an arithmetic number, because the mean of its divisors is an integer number (2626866).

Almost surely, 2^25938655 is an apocalyptic number.

25938655 is a deficient number, since it is larger than the sum of its proper divisors (5583737).

25938655 is an equidigital number, since it uses as much as digits as its factorization.

25938655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 335 counting only the distinct ones).

The product of its digits is 324000, while the sum is 43.

The square root of 25938655 is about 5093.0005890438. Note that the first 3 decimals coincide. The cubic root of 25938655 is about 296.0164306377.

The spelling of 25938655 in words is "twenty-five million, nine hundred thirty-eight thousand, six hundred fifty-five".