53307757780 has 24 divisors (see below), whose sum is σ = 112426757352. Its totient is φ = 21231585792.

The previous prime is 53307757751. The next prime is 53307757781. The reversal of 53307757780 is 8775770335.

53307757780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 52041796 + 53255715984 = 7214^2 + 230772^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53307757781) 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, 5715057 + ... + 5724376.

It is an arithmetic number, because the mean of its divisors is an integer number (4684448223).

Almost surely, 2^53307757780 is an apocalyptic number.

It is an amenable number.

53307757780 is an abundant number, since it is smaller than the sum of its proper divisors (59118999572).

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

53307757780 is a wasteful number, since it uses less digits than its factorization.

53307757780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11439675 (or 11439673 counting only the distinct ones).

The product of its (nonzero) digits is 4321800, while the sum is 52.

The spelling of 53307757780 in words is "fifty-three billion, three hundred seven million, seven hundred fifty-seven thousand, seven hundred eighty".