502942091 has 4 divisors (see below), whose sum is σ = 502997184. Its totient is φ = 502887000.

The previous prime is 502942087. The next prime is 502942117. The reversal of 502942091 is 190249205.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 502942091 - 2² = 502942087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (502942031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10220 + ... + 33321.

It is an arithmetic number, because the mean of its divisors is an integer number (125749296).

Almost surely, 2^502942091 is an apocalyptic number.

502942091 is a deficient number, since it is larger than the sum of its proper divisors (55093).

502942091 is a wasteful number, since it uses less digits than its factorization.

502942091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55092.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 502942091 is about 22426.3704375006. The cubic root of 502942091 is about 795.2542419575.

The spelling of 502942091 in words is "five hundred two million, nine hundred forty-two thousand, ninety-one".