4975750521 has 27 divisors (see below), whose sum is σ = 8363104581. Its totient is φ = 2842439544.

The previous prime is 4975750499. The next prime is 4975750543. The reversal of 4975750521 is 1250575794.

The square root of 4975750521 is 70539.

It is a perfect power (a square), and thus also a powerful number.

4975750521 is a `hidden beast` number, since 4 + 9 + 75 + 7 + 50 + 521 = 666.

It is an interprime number because it is at equal distance from previous prime (4975750499) and next prime (4975750543).

It is not a de Polignac number, because 4975750521 - 2⁵ = 4975750489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4975750721) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1479640 + ... + 1482998.

Almost surely, 2^4975750521 is an apocalyptic number.

4975750521 is the 70539-th square number.

4975750521 is the 35270-th centered octagonal number.

It is an amenable number.

4975750521 is a deficient number, since it is larger than the sum of its proper divisors (3387354060).

4975750521 is an frugal number, since it uses more digits than its factorization.

4975750521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6738 (or 3369 counting only the distinct ones).

The product of its (nonzero) digits is 441000, while the sum is 45.

The cubic root of 4975750521 is about 1707.2070638556.

The spelling of 4975750521 in words is "four billion, nine hundred seventy-five million, seven hundred fifty thousand, five hundred twenty-one".