53677764 has 72 divisors (see below), whose sum is σ = 158034240. Its totient is φ = 15043392.

The previous prime is 53677751. The next prime is 53677781. The reversal of 53677764 is 46777635.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11347 + ... + 15365.

It is an arithmetic number, because the mean of its divisors is an integer number (2194920).

Almost surely, 2^53677764 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53677764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79017120).

53677764 is an abundant number, since it is smaller than the sum of its proper divisors (104356476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53677764 is a wasteful number, since it uses less digits than its factorization.

53677764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4089 (or 4084 counting only the distinct ones).

The product of its digits is 740880, while the sum is 45.

The square root of 53677764 is about 7326.5110386868. The cubic root of 53677764 is about 377.2229776159. Note that the first 3 decimals are identical.

It can be divided in two parts, 5367 and 7764, that added together give a palindrome (13131).

The spelling of 53677764 in words is "fifty-three million, six hundred seventy-seven thousand, seven hundred sixty-four".