25531453 has 2 divisors, whose sum is σ = 25531454. Its totient is φ = 25531452.

The previous prime is 25531447. The next prime is 25531523. The reversal of 25531453 is 35413552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13155129 + 12376324 = 3627^2 + 3518^2 .

It is a cyclic number.

It is not a de Polignac number, because 25531453 - 2⁹ = 25530941 is a prime.

It is equal to p_1597015 and since 25531453 and 1597015 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25531423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12765726 + 12765727.

It is an arithmetic number, because the mean of its divisors is an integer number (12765727).

Almost surely, 2^25531453 is an apocalyptic number.

It is an amenable number.

25531453 is a deficient number, since it is larger than the sum of its proper divisors (1).

25531453 is an equidigital number, since it uses as much as digits as its factorization.

25531453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9000, while the sum is 28.

The square root of 25531453 is about 5052.8658205023. The cubic root of 25531453 is about 294.4592333961.

The spelling of 25531453 in words is "twenty-five million, five hundred thirty-one thousand, four hundred fifty-three".