52739289 has 8 divisors (see below), whose sum is σ = 78132320. Its totient is φ = 35159508.

The previous prime is 52739263. The next prime is 52739341. The reversal of 52739289 is 98293725.

It is not a de Polignac number, because 52739289 - 2⁸ = 52739033 is a prime.

It is a super-3 number, since 3×52739289³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52739209) 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, 976627 + ... + 976680.

It is an arithmetic number, because the mean of its divisors is an integer number (9766540).

Almost surely, 2^52739289 is an apocalyptic number.

It is an amenable number.

52739289 is a deficient number, since it is larger than the sum of its proper divisors (25393031).

52739289 is a wasteful number, since it uses less digits than its factorization.

52739289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953316 (or 1953310 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 52739289 is about 7262.1821100823. The cubic root of 52739289 is about 375.0116476382.

The spelling of 52739289 in words is "fifty-two million, seven hundred thirty-nine thousand, two hundred eighty-nine".