507166722253 has 4 divisors (see below), whose sum is σ = 508045694620. Its totient is φ = 506287749888.

The previous prime is 507166722203. The next prime is 507166722259. The reversal of 507166722253 is 352227661705.

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

It can be written as a sum of positive squares in 2 ways, for example, as 450592672644 + 56574049609 = 671262^2 + 237853^2 .

It is a cyclic number.

It is not a de Polignac number, because 507166722253 - 2²¹ = 507164625101 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 (507166722259) 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, 439485318 + ... + 439486471.

It is an arithmetic number, because the mean of its divisors is an integer number (127011423655).

Almost surely, 2^507166722253 is an apocalyptic number.

It is an amenable number.

507166722253 is a deficient number, since it is larger than the sum of its proper divisors (878972367).

507166722253 is an equidigital number, since it uses as much as digits as its factorization.

507166722253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878972366.

The product of its (nonzero) digits is 1058400, while the sum is 46.

The spelling of 507166722253 in words is "five hundred seven billion, one hundred sixty-six million, seven hundred twenty-two thousand, two hundred fifty-three".