25700830 has 8 divisors (see below), whose sum is σ = 46261512. Its totient is φ = 10280328.

The previous prime is 25700791. The next prime is 25700839. The reversal of 25700830 is 3800752.

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

It is a junction number, because it is equal to n+sod(n) for n = 25700795 and 25700804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25700839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1285032 + ... + 1285051.

It is an arithmetic number, because the mean of its divisors is an integer number (5782689).

Almost surely, 2^25700830 is an apocalyptic number.

25700830 is a deficient number, since it is larger than the sum of its proper divisors (20560682).

25700830 is a wasteful number, since it uses less digits than its factorization.

25700830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2570090.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 25700830 is about 5069.5986034399. The cubic root of 25700830 is about 295.1089514254.

The spelling of 25700830 in words is "twenty-five million, seven hundred thousand, eight hundred thirty".