25120785 has 16 divisors (see below), whose sum is σ = 40453056. Its totient is φ = 13311168.

The previous prime is 25120721. The next prime is 25120787. The reversal of 25120785 is 58702152.

It is not a de Polignac number, because 25120785 - 2⁶ = 25120721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25120787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2979 + ... + 7688.

It is an arithmetic number, because the mean of its divisors is an integer number (2528316).

Almost surely, 2^25120785 is an apocalyptic number.

It is an amenable number.

25120785 is a deficient number, since it is larger than the sum of its proper divisors (15332271).

25120785 is a wasteful number, since it uses less digits than its factorization.

25120785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10832.

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 25120785 is about 5012.0639461204. The cubic root of 25120785 is about 292.8719207862.

The spelling of 25120785 in words is "twenty-five million, one hundred twenty thousand, seven hundred eighty-five".