25502455 has 32 divisors (see below), whose sum is σ = 35251200. Its totient is φ = 17539200.

The previous prime is 25502443. The next prime is 25502459. The reversal of 25502455 is 55420552.

It is not a de Polignac number, because 25502455 - 2⁹ = 25501943 is a prime.

It is a super-2 number, since 2×25502455² = 1300750422054050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25502459) 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 31 ways as a sum of consecutive naturals, for example, 93970 + ... + 94240.

It is an arithmetic number, because the mean of its divisors is an integer number (1101600).

Almost surely, 2^25502455 is an apocalyptic number.

25502455 is a deficient number, since it is larger than the sum of its proper divisors (9748745).

25502455 is a wasteful number, since it uses less digits than its factorization.

25502455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375.

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 25502455 is about 5049.9955445525. The cubic root of 25502455 is about 294.3477112985.

It can be divided in two parts, 2550 and 2455, that added together give a palindrome (5005).

The spelling of 25502455 in words is "twenty-five million, five hundred two thousand, four hundred fifty-five".