506557807 has 16 divisors (see below), whose sum is σ = 589400064. Its totient is φ = 426384000.

The previous prime is 506557783. The next prime is 506557813. The reversal of 506557807 is 708755605.

It is not a de Polignac number, because 506557807 - 2⁷ = 506557679 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 (506557817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132807 + ... + 136567.

It is an arithmetic number, because the mean of its divisors is an integer number (36837504).

Almost surely, 2^506557807 is an apocalyptic number.

506557807 is a deficient number, since it is larger than the sum of its proper divisors (82842257).

506557807 is a wasteful number, since it uses less digits than its factorization.

506557807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4110.

The product of its (nonzero) digits is 294000, while the sum is 43.

The square root of 506557807 is about 22506.8391161442. The cubic root of 506557807 is about 797.1554219369.

The spelling of 506557807 in words is "five hundred six million, five hundred fifty-seven thousand, eight hundred seven".