472215745 has 4 divisors (see below), whose sum is σ = 566658900. Its totient is φ = 377772592.

The previous prime is 472215739. The next prime is 472215761. The reversal of 472215745 is 547512274.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 547512274 = 2 ⋅273756137.

It can be written as a sum of positive squares in 2 ways, for example, as 103306896 + 368908849 = 10164^2 + 19207^2 .

It is a cyclic number.

It is not a de Polignac number, because 472215745 - 2⁷ = 472215617 is a prime.

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, 47221570 + ... + 47221579.

It is an arithmetic number, because the mean of its divisors is an integer number (141664725).

Almost surely, 2^472215745 is an apocalyptic number.

It is an amenable number.

472215745 is a deficient number, since it is larger than the sum of its proper divisors (94443155).

472215745 is an equidigital number, since it uses as much as digits as its factorization.

472215745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94443154.

The product of its digits is 78400, while the sum is 37.

The square root of 472215745 is about 21730.5256494177. The cubic root of 472215745 is about 778.7178942730.

The spelling of 472215745 in words is "four hundred seventy-two million, two hundred fifteen thousand, seven hundred forty-five".