507494401 has 4 divisors (see below), whose sum is σ = 508210900. Its totient is φ = 506777904.

The previous prime is 507494399. The next prime is 507494411. The reversal of 507494401 is 104494705.

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 322561600 + 184932801 = 17960^2 + 13599^2 .

It is a cyclic number.

It is not a de Polignac number, because 507494401 - 2¹ = 507494399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (507494411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357186 + ... + 358603.

It is an arithmetic number, because the mean of its divisors is an integer number (127052725).

Almost surely, 2^507494401 is an apocalyptic number.

It is an amenable number.

507494401 is a deficient number, since it is larger than the sum of its proper divisors (716499).

507494401 is an equidigital number, since it uses as much as digits as its factorization.

507494401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716498.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 507494401 is about 22527.6363828965. The cubic root of 507494401 is about 797.6464164500.

The spelling of 507494401 in words is "five hundred seven million, four hundred ninety-four thousand, four hundred one".