52891549 has 4 divisors (see below), whose sum is σ = 54597760. Its totient is φ = 51185340.

The previous prime is 52891511. The next prime is 52891583. The reversal of 52891549 is 94519825.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 52891549 - 2⁹ = 52891037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52891589) 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, 853059 + ... + 853120.

It is an arithmetic number, because the mean of its divisors is an integer number (13649440).

Almost surely, 2^52891549 is an apocalyptic number.

It is an amenable number.

52891549 is a deficient number, since it is larger than the sum of its proper divisors (1706211).

52891549 is a wasteful number, since it uses less digits than its factorization.

52891549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706210.

The product of its digits is 129600, while the sum is 43.

The square root of 52891549 is about 7272.6576297802. The cubic root of 52891549 is about 375.3721910672.

The spelling of 52891549 in words is "fifty-two million, eight hundred ninety-one thousand, five hundred forty-nine".