25240790501 has 2 divisors, whose sum is σ = 25240790502. Its totient is φ = 25240790500.

The previous prime is 25240790467. The next prime is 25240790507. The reversal of 25240790501 is 10509704252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12639605476 + 12601185025 = 112426^2 + 112255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25240790501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25240790507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12620395250 + 12620395251.

It is an arithmetic number, because the mean of its divisors is an integer number (12620395251).

Almost surely, 2^25240790501 is an apocalyptic number.

It is an amenable number.

25240790501 is a deficient number, since it is larger than the sum of its proper divisors (1).

25240790501 is an equidigital number, since it uses as much as digits as its factorization.

25240790501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 25240790501 in words is "twenty-five billion, two hundred forty million, seven hundred ninety thousand, five hundred one".