26631925 has 6 divisors (see below), whose sum is σ = 33023618. Its totient is φ = 21305520.

The previous prime is 26631923. The next prime is 26631931. The reversal of 26631925 is 52913662.

It can be written as a sum of positive squares in 3 ways, for example, as 181476 + 26450449 = 426^2 + 5143^2 .

It is not a de Polignac number, because 26631925 - 2¹ = 26631923 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 (26631923) 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, 532614 + ... + 532663.

Almost surely, 2^26631925 is an apocalyptic number.

26631925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26631925 is a deficient number, since it is larger than the sum of its proper divisors (6391693).

26631925 is a wasteful number, since it uses less digits than its factorization.

26631925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065287 (or 1065282 counting only the distinct ones).

The product of its digits is 19440, while the sum is 34.

The square root of 26631925 is about 5160.6128512028. The cubic root of 26631925 is about 298.6305171612.

It can be divided in two parts, 26631 and 925, that added together give a square (27556 = 166²).

The spelling of 26631925 in words is "twenty-six million, six hundred thirty-one thousand, nine hundred twenty-five".