53377881 has 12 divisors (see below), whose sum is σ = 72183888. Its totient is φ = 35080584.

The previous prime is 53377879. The next prime is 53377889. The reversal of 53377881 is 18877335.

It is not a de Polignac number, because 53377881 - 2¹ = 53377879 is a prime.

It is a super-2 number, since 2×53377881² = 5698396360100322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53377889) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115056 + ... + 115518.

It is an arithmetic number, because the mean of its divisors is an integer number (6015324).

Almost surely, 2^53377881 is an apocalyptic number.

It is an amenable number.

53377881 is a deficient number, since it is larger than the sum of its proper divisors (18806007).

53377881 is an frugal number, since it uses more digits than its factorization.

53377881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012 (or 549 counting only the distinct ones).

The product of its digits is 141120, while the sum is 42.

The square root of 53377881 is about 7306.0167670215. The cubic root of 53377881 is about 376.5191847849.

The spelling of 53377881 in words is "fifty-three million, three hundred seventy-seven thousand, eight hundred eighty-one".