913909553 has 2 divisors, whose sum is σ = 913909554. Its totient is φ = 913909552.

The previous prime is 913909499. The next prime is 913909559. The reversal of 913909553 is 355909319.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 882862369 + 31047184 = 29713^2 + 5572^2 .

It is a cyclic number.

It is not a de Polignac number, because 913909553 - 2⁶ = 913909489 is a prime.

It is not a weakly prime, because it can be changed into another prime (913909559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 456954776 + 456954777.

It is an arithmetic number, because the mean of its divisors is an integer number (456954777).

Almost surely, 2^913909553 is an apocalyptic number.

It is an amenable number.

913909553 is a deficient number, since it is larger than the sum of its proper divisors (1).

913909553 is an equidigital number, since it uses as much as digits as its factorization.

913909553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 164025, while the sum is 44.

The square root of 913909553 is about 30230.9370182269. The cubic root of 913909553 is about 970.4378768427.

The spelling of 913909553 in words is "nine hundred thirteen million, nine hundred nine thousand, five hundred fifty-three".