25140737 has 2 divisors, whose sum is σ = 25140738. Its totient is φ = 25140736.

The previous prime is 25140707. The next prime is 25140761. The reversal of 25140737 is 73704152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23580736 + 1560001 = 4856^2 + 1249^2 .

It is a cyclic number.

It is not a de Polignac number, because 25140737 - 2⁸ = 25140481 is a prime.

It is not a weakly prime, because it can be changed into another prime (25140707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12570368 + 12570369.

It is an arithmetic number, because the mean of its divisors is an integer number (12570369).

Almost surely, 2^25140737 is an apocalyptic number.

It is an amenable number.

25140737 is a deficient number, since it is larger than the sum of its proper divisors (1).

25140737 is an equidigital number, since it uses as much as digits as its factorization.

25140737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 25140737 is about 5014.0539486527. The cubic root of 25140737 is about 292.9494373955.

Adding to 25140737 its reverse (73704152), we get a palindrome (98844889).

The spelling of 25140737 in words is "twenty-five million, one hundred forty thousand, seven hundred thirty-seven".