25494793 has 2 divisors, whose sum is σ = 25494794. Its totient is φ = 25494792.

The previous prime is 25494779. The next prime is 25494797. The reversal of 25494793 is 39749452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24176889 + 1317904 = 4917^2 + 1148^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25494793 is a prime.

It is a super-2 number, since 2×25494793² = 1299968940225698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25494797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12747396 + 12747397.

It is an arithmetic number, because the mean of its divisors is an integer number (12747397).

Almost surely, 2^25494793 is an apocalyptic number.

It is an amenable number.

25494793 is a deficient number, since it is larger than the sum of its proper divisors (1).

25494793 is an equidigital number, since it uses as much as digits as its factorization.

25494793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 43.

The square root of 25494793 is about 5049.2368730334. The cubic root of 25494793 is about 294.3182302405.

The spelling of 25494793 in words is "twenty-five million, four hundred ninety-four thousand, seven hundred ninety-three".