502120001 has 4 divisors (see below), whose sum is σ = 502467504. Its totient is φ = 501772500.

The previous prime is 502119997. The next prime is 502120009. The reversal of 502120001 is 100021205.

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 502120001 - 2² = 502119997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (502120009) 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, 171575 + ... + 174476.

It is an arithmetic number, because the mean of its divisors is an integer number (125616876).

Almost surely, 2^502120001 is an apocalyptic number.

It is an amenable number.

502120001 is a deficient number, since it is larger than the sum of its proper divisors (347503).

502120001 is a wasteful number, since it uses less digits than its factorization.

502120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347502.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 502120001 is about 22408.0342957610. The cubic root of 502120001 is about 794.8207082202.

Adding to 502120001 its reverse (100021205), we get a palindrome (602141206).

The spelling of 502120001 in words is "five hundred two million, one hundred twenty thousand, one".