25143453 has 12 divisors (see below), whose sum is σ = 37663808. Its totient is φ = 16762140.

The previous prime is 25143427. The next prime is 25143487. The reversal of 25143453 is 35434152.

It is not a de Polignac number, because 25143453 - 2⁶ = 25143389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25143413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51493 + ... + 51978.

Almost surely, 2^25143453 is an apocalyptic number.

It is an amenable number.

25143453 is a deficient number, since it is larger than the sum of its proper divisors (12520355).

25143453 is an equidigital number, since it uses as much as digits as its factorization.

25143453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103486 (or 103474 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 25143453 is about 5014.3247800676. The cubic root of 25143453 is about 292.9599863043.

The spelling of 25143453 in words is "twenty-five million, one hundred forty-three thousand, four hundred fifty-three".