25783390 has 16 divisors (see below), whose sum is σ = 49140432. Its totient is φ = 9706624.

The previous prime is 25783367. The next prime is 25783397. The reversal of 25783390 is 9338752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25783397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75664 + ... + 76003.

It is an arithmetic number, because the mean of its divisors is an integer number (3071277).

Almost surely, 2^25783390 is an apocalyptic number.

25783390 is a deficient number, since it is larger than the sum of its proper divisors (23357042).

25783390 is a wasteful number, since it uses less digits than its factorization.

25783390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151691.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 25783390 is about 5077.7347311572. The cubic root of 25783390 is about 295.4246111756.

It can be divided in two parts, 25783 and 390, that multiplied together give a triangular number (10055370 = T₄₄₈₄).

The spelling of 25783390 in words is "twenty-five million, seven hundred eighty-three thousand, three hundred ninety".