25120655 has 16 divisors (see below), whose sum is σ = 34689600. Its totient is φ = 17106432.

The previous prime is 25120651. The next prime is 25120703. The reversal of 25120655 is 55602152.

It is not a de Polignac number, because 25120655 - 2² = 25120651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25120651) 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, 2807 + ... + 7623.

It is an arithmetic number, because the mean of its divisors is an integer number (2168100).

Almost surely, 2^25120655 is an apocalyptic number.

25120655 is a deficient number, since it is larger than the sum of its proper divisors (9568945).

25120655 is a wasteful number, since it uses less digits than its factorization.

25120655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4978.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 25120655 is about 5012.0509773944. The cubic root of 25120655 is about 292.8714155816.

The spelling of 25120655 in words is "twenty-five million, one hundred twenty thousand, six hundred fifty-five".