25545498 has 32 divisors (see below), whose sum is σ = 55968192. Its totient is φ = 7708800.

The previous prime is 25545497. The next prime is 25545517. The reversal of 25545498 is 89454552.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25545493) 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, 18678 + ... + 19998.

It is an arithmetic number, because the mean of its divisors is an integer number (1749006).

Almost surely, 2^25545498 is an apocalyptic number.

25545498 is an abundant number, since it is smaller than the sum of its proper divisors (30422694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25545498 is a wasteful number, since it uses less digits than its factorization.

25545498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630.

The product of its digits is 288000, while the sum is 42.

The square root of 25545498 is about 5054.2554347797. The cubic root of 25545498 is about 294.5132180742.

It can be divided in two parts, 255454 and 98, that added together give a palindrome (255552).

The spelling of 25545498 in words is "twenty-five million, five hundred forty-five thousand, four hundred ninety-eight".