915725903 has 2 divisors, whose sum is σ = 915725904. Its totient is φ = 915725902.

The previous prime is 915725861. The next prime is 915725981. The reversal of 915725903 is 309527519.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 915725903 - 2²⁰ = 914677327 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (915725983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 457862951 + 457862952.

It is an arithmetic number, because the mean of its divisors is an integer number (457862952).

Almost surely, 2^915725903 is an apocalyptic number.

915725903 is a deficient number, since it is larger than the sum of its proper divisors (1).

915725903 is an equidigital number, since it uses as much as digits as its factorization.

915725903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 85050, while the sum is 41.

The square root of 915725903 is about 30260.9633521473. The cubic root of 915725903 is about 971.0803504842.

The spelling of 915725903 in words is "nine hundred fifteen million, seven hundred twenty-five thousand, nine hundred three".