5120520001 has 4 divisors (see below), whose sum is σ = 5120769472. Its totient is φ = 5120270532.

The previous prime is 5120519977. The next prime is 5120520017. The reversal of 5120520001 is 1000250215.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1000250215 = 5 ⋅200050043.

It is a cyclic number.

It is not a de Polignac number, because 5120520001 - 2⁹ = 5120519489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5120520101) 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, 90885 + ... + 136018.

It is an arithmetic number, because the mean of its divisors is an integer number (1280192368).

Almost surely, 2^5120520001 is an apocalyptic number.

It is an amenable number.

5120520001 is a deficient number, since it is larger than the sum of its proper divisors (249471).

5120520001 is a wasteful number, since it uses less digits than its factorization.

5120520001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249470.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 5120520001 is about 71557.8088051891. The cubic root of 5120520001 is about 1723.6060994353.

Adding to 5120520001 its reverse (1000250215), we get a palindrome (6120770216).

The spelling of 5120520001 in words is "five billion, one hundred twenty million, five hundred twenty thousand, one".