52472381 has 8 divisors (see below), whose sum is σ = 56598360. Its totient is φ = 48359232.

The previous prime is 52472369. The next prime is 52472389. The reversal of 52472381 is 18327425.

It can be written as a sum of positive squares in 4 ways, for example, as 2544025 + 49928356 = 1595^2 + 7066^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52472381 - 2⁶ = 52472317 is a prime.

It is a super-2 number, since 2×52472381² = 5506701535618322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52472389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6371 + ... + 12063.

It is an arithmetic number, because the mean of its divisors is an integer number (7074795).

Almost surely, 2^52472381 is an apocalyptic number.

It is an amenable number.

52472381 is a deficient number, since it is larger than the sum of its proper divisors (4125979).

52472381 is a wasteful number, since it uses less digits than its factorization.

52472381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6415.

The product of its digits is 13440, while the sum is 32.

The square root of 52472381 is about 7243.7822302993. The cubic root of 52472381 is about 374.3779458856.

The spelling of 52472381 in words is "fifty-two million, four hundred seventy-two thousand, three hundred eighty-one".