508042291 has 16 divisors (see below), whose sum is σ = 541032448. Its totient is φ = 476280000.

The previous prime is 508042279. The next prime is 508042303. The reversal of 508042291 is 192240805.

It is an interprime number because it is at equal distance from previous prime (508042279) and next prime (508042303).

It is a 6-Lehmer number, since φ(508042291) divides (508042291-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 508042291 - 2⁷ = 508042163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

508042291 is a modest number, since divided by 42291 gives 508 as remainder.

It is not an unprimeable number, because it can be changed into a prime (508042231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167791 + ... + 170791.

It is an arithmetic number, because the mean of its divisors is an integer number (33814528).

Almost surely, 2^508042291 is an apocalyptic number.

508042291 is a deficient number, since it is larger than the sum of its proper divisors (32990157).

508042291 is a wasteful number, since it uses less digits than its factorization.

508042291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3202.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 508042291 is about 22539.7934994977. The cubic root of 508042291 is about 797.9333590705.

The spelling of 508042291 in words is "five hundred eight million, forty-two thousand, two hundred ninety-one".