25115773 has 2 divisors, whose sum is σ = 25115774. Its totient is φ = 25115772.

The previous prime is 25115743. The next prime is 25115801. The reversal of 25115773 is 37751152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24235929 + 879844 = 4923^2 + 938^2 .

It is a cyclic number.

It is not a de Polignac number, because 25115773 - 2⁹ = 25115261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25115743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12557886 + 12557887.

It is an arithmetic number, because the mean of its divisors is an integer number (12557887).

Almost surely, 2^25115773 is an apocalyptic number.

It is an amenable number.

25115773 is a deficient number, since it is larger than the sum of its proper divisors (1).

25115773 is an equidigital number, since it uses as much as digits as its factorization.

25115773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7350, while the sum is 31.

The square root of 25115773 is about 5011.5639275579. The cubic root of 25115773 is about 292.8524419403.

The spelling of 25115773 in words is "twenty-five million, one hundred fifteen thousand, seven hundred seventy-three".