9975317501 has 4 divisors (see below), whose sum is σ = 9978435072. Its totient is φ = 9972199932.

The previous prime is 9975317497. The next prime is 9975317503. The reversal of 9975317501 is 1057135799.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9975317501 - 2² = 9975317497 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9975317503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1553981 + ... + 1560386.

It is an arithmetic number, because the mean of its divisors is an integer number (2494608768).

Almost surely, 2^9975317501 is an apocalyptic number.

It is an amenable number.

9975317501 is a deficient number, since it is larger than the sum of its proper divisors (3117571).

9975317501 is a wasteful number, since it uses less digits than its factorization.

9975317501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3117570.

The product of its (nonzero) digits is 297675, while the sum is 47.

The square root of 9975317501 is about 99876.5112576526. The cubic root of 9975317501 is about 2152.6606685848.

The spelling of 9975317501 in words is "nine billion, nine hundred seventy-five million, three hundred seventeen thousand, five hundred one".