52881644 has 6 divisors (see below), whose sum is σ = 92542884. Its totient is φ = 26440820.

The previous prime is 52881613. The next prime is 52881649. The reversal of 52881644 is 44618825.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 52881598 and 52881607.

It is not an unprimeable number, because it can be changed into a prime (52881649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610202 + ... + 6610209.

It is an arithmetic number, because the mean of its divisors is an integer number (15423814).

Almost surely, 2^52881644 is an apocalyptic number.

It is an amenable number.

52881644 is a deficient number, since it is larger than the sum of its proper divisors (39661240).

52881644 is a wasteful number, since it uses less digits than its factorization.

52881644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13220415 (or 13220413 counting only the distinct ones).

The product of its digits is 61440, while the sum is 38.

The square root of 52881644 is about 7271.9766226247. The cubic root of 52881644 is about 375.3487576218.

The spelling of 52881644 in words is "fifty-two million, eight hundred eighty-one thousand, six hundred forty-four".