52147442 has 16 divisors (see below), whose sum is σ = 80141400. Its totient is φ = 25439232.

The previous prime is 52147439. The next prime is 52147471. The reversal of 52147442 is 24474125.

It can be written as a sum of positive squares in 4 ways, for example, as 50822641 + 1324801 = 7129^2 + 1151^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19184 + ... + 21732.

Almost surely, 2^52147442 is an apocalyptic number.

52147442 is a deficient number, since it is larger than the sum of its proper divisors (27993958).

52147442 is a wasteful number, since it uses less digits than its factorization.

52147442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2797.

The product of its digits is 8960, while the sum is 29.

The square root of 52147442 is about 7221.3185776560. The cubic root of 52147442 is about 373.6035577262.

The spelling of 52147442 in words is "fifty-two million, one hundred forty-seven thousand, four hundred forty-two".