52231147 has 4 divisors (see below), whose sum is σ = 53342496. Its totient is φ = 51119800.

The previous prime is 52231121. The next prime is 52231169. The reversal of 52231147 is 74113225.

It is a happy number.

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 52231147 - 2¹⁹ = 51706859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52931147) 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, 555604 + ... + 555697.

It is an arithmetic number, because the mean of its divisors is an integer number (13335624).

Almost surely, 2^52231147 is an apocalyptic number.

52231147 is a deficient number, since it is larger than the sum of its proper divisors (1111349).

52231147 is a wasteful number, since it uses less digits than its factorization.

52231147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111348.

The product of its digits is 1680, while the sum is 25.

The square root of 52231147 is about 7227.1119404642. Note that the first 3 decimals coincide. The cubic root of 52231147 is about 373.8033487230.

The spelling of 52231147 in words is "fifty-two million, two hundred thirty-one thousand, one hundred forty-seven".