25003579457 has 2 divisors, whose sum is σ = 25003579458. Its totient is φ = 25003579456.

The previous prime is 25003579369. The next prime is 25003579487. The reversal of 25003579457 is 75497530052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17857244161 + 7146335296 = 133631^2 + 84536^2 .

It is a cyclic number.

It is not a de Polignac number, because 25003579457 - 2¹⁶ = 25003513921 is a prime.

It is not a weakly prime, because it can be changed into another prime (25003579487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12501789728 + 12501789729.

It is an arithmetic number, because the mean of its divisors is an integer number (12501789729).

Almost surely, 2^25003579457 is an apocalyptic number.

It is an amenable number.

25003579457 is a deficient number, since it is larger than the sum of its proper divisors (1).

25003579457 is an equidigital number, since it uses as much as digits as its factorization.

25003579457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1323000, while the sum is 47.

The spelling of 25003579457 in words is "twenty-five billion, three million, five hundred seventy-nine thousand, four hundred fifty-seven".