53881844 has 24 divisors (see below), whose sum is σ = 97633536. Its totient is φ = 25992000.

The previous prime is 53881843. The next prime is 53881897. The reversal of 53881844 is 44818835.

It is a super-2 number, since 2×53881844² = 5806506225680672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53881843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70424 + ... + 71184.

It is an arithmetic number, because the mean of its divisors is an integer number (4068064).

Almost surely, 2^53881844 is an apocalyptic number.

It is an amenable number.

53881844 is a deficient number, since it is larger than the sum of its proper divisors (43751692).

53881844 is a wasteful number, since it uses less digits than its factorization.

53881844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367 (or 1365 counting only the distinct ones).

The product of its digits is 122880, while the sum is 41.

The square root of 53881844 is about 7340.4253282763. The cubic root of 53881844 is about 377.7004335958.

The spelling of 53881844 in words is "fifty-three million, eight hundred eighty-one thousand, eight hundred forty-four".