25081485 has 48 divisors (see below), whose sum is σ = 47548032. Its totient is φ = 11214720.

The previous prime is 25081481. The next prime is 25081487. The reversal of 25081485 is 58418052.

It is not a de Polignac number, because 25081485 - 2² = 25081481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25081481) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23064 + ... + 24126.

It is an arithmetic number, because the mean of its divisors is an integer number (990584).

Almost surely, 2^25081485 is an apocalyptic number.

It is an amenable number.

25081485 is a deficient number, since it is larger than the sum of its proper divisors (22466547).

25081485 is a wasteful number, since it uses less digits than its factorization.

25081485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106 (or 1095 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 25081485 is about 5008.1418709937. The cubic root of 25081485 is about 292.7191140715.

It can be divided in two parts, 2508 and 1485, that added together give a palindrome (3993).

The spelling of 25081485 in words is "twenty-five million, eighty-one thousand, four hundred eighty-five".