25706870 has 48 divisors (see below), whose sum is σ = 56191968. Its totient is φ = 8426880.

The previous prime is 25706869. The next prime is 25706911. The reversal of 25706870 is 7860752.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 25706870.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10130 + ... + 12410.

It is an arithmetic number, because the mean of its divisors is an integer number (1170666).

Almost surely, 2^25706870 is an apocalyptic number.

25706870 is an abundant number, since it is smaller than the sum of its proper divisors (30485098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25706870 is a wasteful number, since it uses less digits than its factorization.

25706870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2325 (or 2318 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 25706870 is about 5070.1942763567. The cubic root of 25706870 is about 295.1320676497.

The spelling of 25706870 in words is "twenty-five million, seven hundred six thousand, eight hundred seventy".