25451485 has 12 divisors (see below), whose sum is σ = 31279932. Its totient is φ = 19880448.

The previous prime is 25451471. The next prime is 25451519. The reversal of 25451485 is 58415452.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17397241 + 8054244 = 4171^2 + 2838^2 .

It is not a de Polignac number, because 25451485 - 2¹⁷ = 25320413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25451485.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7869 + ... + 10621.

It is an arithmetic number, because the mean of its divisors is an integer number (2606661).

Almost surely, 2^25451485 is an apocalyptic number.

It is an amenable number.

25451485 is a deficient number, since it is larger than the sum of its proper divisors (5828447).

25451485 is an equidigital number, since it uses as much as digits as its factorization.

25451485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2844 (or 2801 counting only the distinct ones).

The product of its digits is 32000, while the sum is 34.

The square root of 25451485 is about 5044.9464813811. The cubic root of 25451485 is about 294.1514830132.

The spelling of 25451485 in words is "twenty-five million, four hundred fifty-one thousand, four hundred eighty-five".