52549139 has 8 divisors (see below), whose sum is σ = 55226160. Its totient is φ = 49938336.

The previous prime is 52549127. The next prime is 52549151. The reversal of 52549139 is 93194525.

It is an interprime number because it is at equal distance from previous prime (52549127) and next prime (52549151).

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 52549139 - 2¹² = 52545043 is a prime.

It is a super-3 number, since 3×52549139³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52549199) 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, 14924 + ... + 18105.

It is an arithmetic number, because the mean of its divisors is an integer number (6903270).

Almost surely, 2^52549139 is an apocalyptic number.

52549139 is a deficient number, since it is larger than the sum of its proper divisors (2677021).

52549139 is a wasteful number, since it uses less digits than its factorization.

52549139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33109.

The product of its digits is 48600, while the sum is 38.

The square root of 52549139 is about 7249.0784931604. The cubic root of 52549139 is about 374.5604069633.

The spelling of 52549139 in words is "fifty-two million, five hundred forty-nine thousand, one hundred thirty-nine".