25188893 has 2 divisors, whose sum is σ = 25188894. Its totient is φ = 25188892.

The previous prime is 25188859. The next prime is 25188899. The reversal of 25188893 is 39888152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22686169 + 2502724 = 4763^2 + 1582^2 .

It is a cyclic number.

It is not a de Polignac number, because 25188893 - 2¹⁸ = 24926749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25188899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12594446 + 12594447.

It is an arithmetic number, because the mean of its divisors is an integer number (12594447).

Almost surely, 2^25188893 is an apocalyptic number.

It is an amenable number.

25188893 is a deficient number, since it is larger than the sum of its proper divisors (1).

25188893 is an equidigital number, since it uses as much as digits as its factorization.

25188893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138240, while the sum is 44.

The square root of 25188893 is about 5018.8537535975. The cubic root of 25188893 is about 293.1363621117.

It can be divided in two parts, 2518 and 8893, that added together give a palindrome (11411).

The spelling of 25188893 in words is "twenty-five million, one hundred eighty-eight thousand, eight hundred ninety-three".