25157755 has 16 divisors (see below), whose sum is σ = 34812864. Its totient is φ = 17095680.

The previous prime is 25157753. The next prime is 25157789. The reversal of 25157755 is 55775152.

It is a happy number.

It is not a de Polignac number, because 25157755 - 2¹ = 25157753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25157753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 775 + ... + 7135.

It is an arithmetic number, because the mean of its divisors is an integer number (2175804).

Almost surely, 2^25157755 is an apocalyptic number.

25157755 is a deficient number, since it is larger than the sum of its proper divisors (9655109).

25157755 is a wasteful number, since it uses less digits than its factorization.

25157755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6486.

The product of its digits is 61250, while the sum is 37.

The square root of 25157755 is about 5015.7506915715. The cubic root of 25157755 is about 293.0155225578.

The spelling of 25157755 in words is "twenty-five million, one hundred fifty-seven thousand, seven hundred fifty-five".