472156523 has 4 divisors (see below), whose sum is σ = 472339560. Its totient is φ = 471973488.

The previous prime is 472156493. The next prime is 472156537. The reversal of 472156523 is 325651274.

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

It is a cyclic number.

It is not a de Polignac number, because 472156523 - 2¹⁶ = 472090987 is a prime.

It is a super-2 number, since 2×472156523² = 445863564422899058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (472156583) 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, 87593 + ... + 92826.

It is an arithmetic number, because the mean of its divisors is an integer number (118084890).

Almost surely, 2^472156523 is an apocalyptic number.

472156523 is a deficient number, since it is larger than the sum of its proper divisors (183037).

472156523 is a wasteful number, since it uses less digits than its factorization.

472156523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183036.

The product of its digits is 50400, while the sum is 35.

The square root of 472156523 is about 21729.1629613292. The cubic root of 472156523 is about 778.6853391258.

The spelling of 472156523 in words is "four hundred seventy-two million, one hundred fifty-six thousand, five hundred twenty-three".