52161549 has 8 divisors (see below), whose sum is σ = 75871392. Its totient is φ = 31613040.

The previous prime is 52161547. The next prime is 52161563. The reversal of 52161549 is 94516125.

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

It is not a de Polignac number, because 52161549 - 2¹ = 52161547 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 1580653 = 52161549 / (5 + 2 + 1 + 6 + 1 + 5 + 4 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52161547) 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, 790294 + ... + 790359.

It is an arithmetic number, because the mean of its divisors is an integer number (9483924).

Almost surely, 2^52161549 is an apocalyptic number.

It is an amenable number.

52161549 is a deficient number, since it is larger than the sum of its proper divisors (23709843).

52161549 is a wasteful number, since it uses less digits than its factorization.

52161549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580667.

The product of its digits is 10800, while the sum is 33.

The square root of 52161549 is about 7222.2952722801. The cubic root of 52161549 is about 373.6372439436.

The spelling of 52161549 in words is "fifty-two million, one hundred sixty-one thousand, five hundred forty-nine".