53107776 has 84 divisors (see below), whose sum is σ = 153562812. Its totient is φ = 17547264.

The previous prime is 53107763. The next prime is 53107781. The reversal of 53107776 is 67770135.

It can be written as a sum of positive squares in 2 ways, for example, as 24206400 + 28901376 = 4920^2 + 5376^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 53107776.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78576 + ... + 79248.

Almost surely, 2^53107776 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 53107776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76781406).

53107776 is an abundant number, since it is smaller than the sum of its proper divisors (100455036).

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

53107776 is a wasteful number, since it uses less digits than its factorization.

53107776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828 (or 815 counting only the distinct ones).

The product of its (nonzero) digits is 30870, while the sum is 36.

The square root of 53107776 is about 7287.5082161189. The cubic root of 53107776 is about 375.8830177802.

The spelling of 53107776 in words is "fifty-three million, one hundred seven thousand, seven hundred seventy-six".