52143885 has 64 divisors (see below), whose sum is σ = 101088000. Its totient is φ = 25401600.

The previous prime is 52143881. The next prime is 52143887. The reversal of 52143885 is 58834125.

It is a happy number.

It is not a de Polignac number, because 52143885 - 2² = 52143881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52143881) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 74035 + ... + 74735.

It is an arithmetic number, because the mean of its divisors is an integer number (1579500).

Almost surely, 2^52143885 is an apocalyptic number.

It is an amenable number.

52143885 is a deficient number, since it is larger than the sum of its proper divisors (48944115).

52143885 is a wasteful number, since it uses less digits than its factorization.

52143885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763 (or 757 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 52143885 is about 7221.0722887948. The cubic root of 52143885 is about 373.5950629786.

The spelling of 52143885 in words is "fifty-two million, one hundred forty-three thousand, eight hundred eighty-five".