25783455 has 16 divisors (see below), whose sum is σ = 41393664. Its totient is φ = 13704480.

The previous prime is 25783453. The next prime is 25783463. The reversal of 25783455 is 55438752.

It is not a de Polignac number, because 25783455 - 2¹ = 25783453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25783451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1902 + ... + 7428.

It is an arithmetic number, because the mean of its divisors is an integer number (2587104).

Almost surely, 2^25783455 is an apocalyptic number.

25783455 is a deficient number, since it is larger than the sum of its proper divisors (15610209).

25783455 is a wasteful number, since it uses less digits than its factorization.

25783455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5846.

The product of its digits is 168000, while the sum is 39.

The square root of 25783455 is about 5077.7411316451. The cubic root of 25783455 is about 295.4248594309.

The spelling of 25783455 in words is "twenty-five million, seven hundred eighty-three thousand, four hundred fifty-five".