25258061 has 4 divisors (see below), whose sum is σ = 25268124. Its totient is φ = 25248000.

The previous prime is 25258027. The next prime is 25258067. The reversal of 25258061 is 16085252.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 16760836 + 8497225 = 4094^2 + 2915^2 .

It is a cyclic number.

It is not a de Polignac number, because 25258061 - 2⁶ = 25257997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25258067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2171 + ... + 7431.

It is an arithmetic number, because the mean of its divisors is an integer number (6317031).

Almost surely, 2^25258061 is an apocalyptic number.

It is an amenable number.

25258061 is a deficient number, since it is larger than the sum of its proper divisors (10063).

25258061 is an equidigital number, since it uses as much as digits as its factorization.

25258061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10062.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 25258061 is about 5025.7398460326. The cubic root of 25258061 is about 293.4044316581.

The spelling of 25258061 in words is "twenty-five million, two hundred fifty-eight thousand, sixty-one".