472865511 has 4 divisors (see below), whose sum is σ = 630487352. Its totient is φ = 315243672.

The previous prime is 472865507. The next prime is 472865527. The reversal of 472865511 is 115568274.

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

It is not a de Polignac number, because 472865511 - 2² = 472865507 is a prime.

It is a super-2 number, since 2×472865511² = 447203582986582242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 472865511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472865531) 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, 78810916 + ... + 78810921.

It is an arithmetic number, because the mean of its divisors is an integer number (157621838).

Almost surely, 2^472865511 is an apocalyptic number.

472865511 is a deficient number, since it is larger than the sum of its proper divisors (157621841).

472865511 is a wasteful number, since it uses less digits than its factorization.

472865511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157621840.

The product of its digits is 67200, while the sum is 39.

The square root of 472865511 is about 21745.4710457143. The cubic root of 472865511 is about 779.0749009426.

The spelling of 472865511 in words is "four hundred seventy-two million, eight hundred sixty-five thousand, five hundred eleven".