472052261 has 4 divisors (see below), whose sum is σ = 472369932. Its totient is φ = 471734592.

The previous prime is 472052239. The next prime is 472052263. The reversal of 472052261 is 162250274.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 162250274 = 2 ⋅81125137.

It can be written as a sum of positive squares in 2 ways, for example, as 225750625 + 246301636 = 15025^2 + 15694^2 .

It is a cyclic number.

It is not a de Polignac number, because 472052261 - 2⁶ = 472052197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472052263) 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, 156596 + ... + 159581.

It is an arithmetic number, because the mean of its divisors is an integer number (118092483).

Almost surely, 2^472052261 is an apocalyptic number.

It is an amenable number.

472052261 is a deficient number, since it is larger than the sum of its proper divisors (317671).

472052261 is a wasteful number, since it uses less digits than its factorization.

472052261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317670.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 472052261 is about 21726.7637028620. The cubic root of 472052261 is about 778.6280182562.

The spelling of 472052261 in words is "four hundred seventy-two million, fifty-two thousand, two hundred sixty-one".