25135273 has 2 divisors, whose sum is σ = 25135274. Its totient is φ = 25135272.

The previous prime is 25135267. The next prime is 25135277. The reversal of 25135273 is 37253152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25120144 + 15129 = 5012^2 + 123^2 .

It is a cyclic number.

It is not a de Polignac number, because 25135273 - 2⁵ = 25135241 is a prime.

It is equal to p_1573921 and since 25135273 and 1573921 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (25135277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12567636 + 12567637.

It is an arithmetic number, because the mean of its divisors is an integer number (12567637).

Almost surely, 2^25135273 is an apocalyptic number.

It is an amenable number.

25135273 is a deficient number, since it is larger than the sum of its proper divisors (1).

25135273 is an equidigital number, since it uses as much as digits as its factorization.

25135273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6300, while the sum is 28.

The square root of 25135273 is about 5013.5090505553. The cubic root of 25135273 is about 292.9282129885.

The spelling of 25135273 in words is "twenty-five million, one hundred thirty-five thousand, two hundred seventy-three".