25791026 has 4 divisors (see below), whose sum is σ = 38686542. Its totient is φ = 12895512.

The previous prime is 25790987. The next prime is 25791061. The reversal of 25791026 is 62019752.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 24990001 + 801025 = 4999^2 + 895^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25790983 and 25791001.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6447755 + ... + 6447758.

Almost surely, 2^25791026 is an apocalyptic number.

25791026 is a deficient number, since it is larger than the sum of its proper divisors (12895516).

25791026 is a wasteful number, since it uses less digits than its factorization.

25791026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12895515.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 25791026 is about 5078.4865855883. The cubic root of 25791026 is about 295.4537725811.

The spelling of 25791026 in words is "twenty-five million, seven hundred ninety-one thousand, twenty-six".