507072805 has 4 divisors (see below), whose sum is σ = 608487372. Its totient is φ = 405658240.

The previous prime is 507072799. The next prime is 507072847. The reversal of 507072805 is 508270705.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 508270705 = 5 ⋅101654141.

It can be written as a sum of positive squares in 2 ways, for example, as 364580836 + 142491969 = 19094^2 + 11937^2 .

It is not a de Polignac number, because 507072805 - 2¹⁷ = 506941733 is a prime.

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, 50707276 + ... + 50707285.

It is an arithmetic number, because the mean of its divisors is an integer number (152121843).

Almost surely, 2^507072805 is an apocalyptic number.

It is an amenable number.

507072805 is a deficient number, since it is larger than the sum of its proper divisors (101414567).

507072805 is a wasteful number, since it uses less digits than its factorization.

507072805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101414566.

The product of its (nonzero) digits is 19600, while the sum is 34.

The square root of 507072805 is about 22518.2771321431. The cubic root of 507072805 is about 797.4254762764.

The spelling of 507072805 in words is "five hundred seven million, seventy-two thousand, eight hundred five".