25534261 has 2 divisors, whose sum is σ = 25534262. Its totient is φ = 25534260.

The previous prime is 25534253. The next prime is 25534277. The reversal of 25534261 is 16243552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21996100 + 3538161 = 4690^2 + 1881^2 .

It is a cyclic number.

It is not a de Polignac number, because 25534261 - 2³ = 25534253 is a prime.

It is a super-2 number, since 2×25534261² = 1303996969632242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25534291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12767130 + 12767131.

It is an arithmetic number, because the mean of its divisors is an integer number (12767131).

Almost surely, 2^25534261 is an apocalyptic number.

It is an amenable number.

25534261 is a deficient number, since it is larger than the sum of its proper divisors (1).

25534261 is an equidigital number, since it uses as much as digits as its factorization.

25534261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 28.

The square root of 25534261 is about 5053.1436749810. The cubic root of 25534261 is about 294.4700280712.

The spelling of 25534261 in words is "twenty-five million, five hundred thirty-four thousand, two hundred sixty-one".