25028782 has 4 divisors (see below), whose sum is σ = 37543176. Its totient is φ = 12514390.

The previous prime is 25028771. The next prime is 25028821. The reversal of 25028782 is 28782052.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6257194 + ... + 6257197.

It is an arithmetic number, because the mean of its divisors is an integer number (9385794).

Almost surely, 2^25028782 is an apocalyptic number.

25028782 is a deficient number, since it is larger than the sum of its proper divisors (12514394).

25028782 is a wasteful number, since it uses less digits than its factorization.

25028782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12514393.

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 25028782 is about 5002.8773720730. The cubic root of 25028782 is about 292.5139428910.

It can be divided in two parts, 25028 and 782, that multiplied together give a triangular number (19571896 = T₆₂₅₆).

The spelling of 25028782 in words is "twenty-five million, twenty-eight thousand, seven hundred eighty-two".