25113620509673 has 2 divisors, whose sum is σ = 25113620509674. Its totient is φ = 25113620509672.

The previous prime is 25113620509613. The next prime is 25113620509727. The reversal of 25113620509673 is 37690502631152.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14346277371904 + 10767343137769 = 3787648^2 + 3281363^2 .

It is a cyclic number.

It is not a de Polignac number, because 25113620509673 - 2²² = 25113616315369 is a prime.

It is not a weakly prime, because it can be changed into another prime (25113620509603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12556810254836 + 12556810254837.

It is an arithmetic number, because the mean of its divisors is an integer number (12556810254837).

Almost surely, 2^{25113620509673} is an apocalyptic number.

It is an amenable number.

25113620509673 is a deficient number, since it is larger than the sum of its proper divisors (1).

25113620509673 is an equidigital number, since it uses as much as digits as its factorization.

25113620509673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2041200, while the sum is 50.

The spelling of 25113620509673 in words is "twenty-five trillion, one hundred thirteen billion, six hundred twenty million, five hundred nine thousand, six hundred seventy-three".