25025512573 has 2 divisors, whose sum is σ = 25025512574. Its totient is φ = 25025512572.

The previous prime is 25025512543. The next prime is 25025512613. The reversal of 25025512573 is 37521552052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16227447769 + 8798064804 = 127387^2 + 93798^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25025512573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25025512513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12512756286 + 12512756287.

It is an arithmetic number, because the mean of its divisors is an integer number (12512756287).

Almost surely, 2^25025512573 is an apocalyptic number.

It is an amenable number.

25025512573 is a deficient number, since it is larger than the sum of its proper divisors (1).

25025512573 is an equidigital number, since it uses as much as digits as its factorization.

25025512573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105000, while the sum is 37.

The spelling of 25025512573 in words is "twenty-five billion, twenty-five million, five hundred twelve thousand, five hundred seventy-three".