506961503 has 4 divisors (see below), whose sum is σ = 507063720. Its totient is φ = 506859288.

The previous prime is 506961493. The next prime is 506961509. The reversal of 506961503 is 305169605.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 506961503 - 2⁴ = 506961487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506961509) 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, 43268 + ... + 53721.

It is an arithmetic number, because the mean of its divisors is an integer number (126765930).

Almost surely, 2^506961503 is an apocalyptic number.

506961503 is a deficient number, since it is larger than the sum of its proper divisors (102217).

506961503 is an equidigital number, since it uses as much as digits as its factorization.

506961503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102216.

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 506961503 is about 22515.8056262706. The cubic root of 506961503 is about 797.3671272949.

The spelling of 506961503 in words is "five hundred six million, nine hundred sixty-one thousand, five hundred three".