52351647 has 4 divisors (see below), whose sum is σ = 69802200. Its totient is φ = 34901096.

The previous prime is 52351613. The next prime is 52351667. The reversal of 52351647 is 74615325.

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 52351647 - 2⁸ = 52351391 is a prime.

It is a super-3 number, since 3×52351647³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52351667) 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, 8725272 + ... + 8725277.

It is an arithmetic number, because the mean of its divisors is an integer number (17450550).

Almost surely, 2^52351647 is an apocalyptic number.

52351647 is a deficient number, since it is larger than the sum of its proper divisors (17450553).

52351647 is a wasteful number, since it uses less digits than its factorization.

52351647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17450552.

The product of its digits is 25200, while the sum is 33.

The square root of 52351647 is about 7235.4438011776. The cubic root of 52351647 is about 374.0905892640.

The spelling of 52351647 in words is "fifty-two million, three hundred fifty-one thousand, six hundred forty-seven".