52142649 has 16 divisors (see below), whose sum is σ = 75106752. Its totient is φ = 31987008.

The previous prime is 52142647. The next prime is 52142663. The reversal of 52142649 is 94624125.

52142649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52142649 - 2¹ = 52142647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52142647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11607 + ... + 15459.

It is an arithmetic number, because the mean of its divisors is an integer number (4694172).

Almost surely, 2^52142649 is an apocalyptic number.

It is an amenable number.

52142649 is a deficient number, since it is larger than the sum of its proper divisors (22964103).

52142649 is a wasteful number, since it uses less digits than its factorization.

52142649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4216.

The product of its digits is 17280, while the sum is 33.

The square root of 52142649 is about 7220.9867054302. The cubic root of 52142649 is about 373.5921111007.

The spelling of 52142649 in words is "fifty-two million, one hundred forty-two thousand, six hundred forty-nine".