25828761 has 8 divisors (see below), whose sum is σ = 39358144. Its totient is φ = 14759280.

The previous prime is 25828717. The next prime is 25828769. The reversal of 25828761 is 16782852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25828761 - 2¹⁴ = 25812377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25828769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 614950 + ... + 614991.

It is an arithmetic number, because the mean of its divisors is an integer number (4919768).

Almost surely, 2^25828761 is an apocalyptic number.

25828761 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

25828761 is a deficient number, since it is larger than the sum of its proper divisors (13529383).

25828761 is a wasteful number, since it uses less digits than its factorization.

25828761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229951.

The product of its digits is 53760, while the sum is 39.

The square root of 25828761 is about 5082.2004092716. The cubic root of 25828761 is about 295.5977957407.

The spelling of 25828761 in words is "twenty-five million, eight hundred twenty-eight thousand, seven hundred sixty-one".