25536461 has 2 divisors, whose sum is σ = 25536462. Its totient is φ = 25536460.

The previous prime is 25536457. The next prime is 25536473. The reversal of 25536461 is 16463552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21949225 + 3587236 = 4685^2 + 1894^2 .

It is a cyclic number.

It is not a de Polignac number, because 25536461 - 2² = 25536457 is a prime.

It is a super-2 number, since 2×25536461² = 1304221680809042, which contains 22 as substring.

It is equal to p_1597307 and since 25536461 and 1597307 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 (25536421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12768230 + 12768231.

It is an arithmetic number, because the mean of its divisors is an integer number (12768231).

Almost surely, 2^25536461 is an apocalyptic number.

It is an amenable number.

25536461 is a deficient number, since it is larger than the sum of its proper divisors (1).

25536461 is an equidigital number, since it uses as much as digits as its factorization.

25536461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 32.

The square root of 25536461 is about 5053.3613565626. The cubic root of 25536461 is about 294.4784848848.

The spelling of 25536461 in words is "twenty-five million, five hundred thirty-six thousand, four hundred sixty-one".