507142885 has 4 divisors (see below), whose sum is σ = 608571468. Its totient is φ = 405714304.

The previous prime is 507142879. The next prime is 507142891. The reversal of 507142885 is 588241705.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 588241705 = 5 ⋅117648341.

It is an interprime number because it is at equal distance from previous prime (507142879) and next prime (507142891).

It can be written as a sum of positive squares in 2 ways, for example, as 369831361 + 137311524 = 19231^2 + 11718^2 .

It is a cyclic number.

It is not a de Polignac number, because 507142885 - 2¹⁹ = 506618597 is a prime.

It is a super-2 number, since 2×507142885² = 514387811612246450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50714284 + ... + 50714293.

It is an arithmetic number, because the mean of its divisors is an integer number (152142867).

Almost surely, 2^507142885 is an apocalyptic number.

It is an amenable number.

507142885 is a deficient number, since it is larger than the sum of its proper divisors (101428583).

507142885 is a wasteful number, since it uses less digits than its factorization.

507142885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101428582.

The product of its (nonzero) digits is 89600, while the sum is 40.

The square root of 507142885 is about 22519.8331476945. The cubic root of 507142885 is about 797.4622106483.

The spelling of 507142885 in words is "five hundred seven million, one hundred forty-two thousand, eight hundred eighty-five".