25501155 has 8 divisors (see below), whose sum is σ = 40801872. Its totient is φ = 13600608.

The previous prime is 25501153. The next prime is 25501199. The reversal of 25501155 is 55110552.

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

It is not a de Polignac number, because 25501155 - 2¹ = 25501153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25501153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 850024 + ... + 850053.

It is an arithmetic number, because the mean of its divisors is an integer number (5100234).

Almost surely, 2^25501155 is an apocalyptic number.

25501155 is a deficient number, since it is larger than the sum of its proper divisors (15300717).

25501155 is a wasteful number, since it uses less digits than its factorization.

25501155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700085.

The product of its (nonzero) digits is 1250, while the sum is 24.

The square root of 25501155 is about 5049.8668299273. The cubic root of 25501155 is about 294.3427097078.

The spelling of 25501155 in words is "twenty-five million, five hundred one thousand, one hundred fifty-five".