53703680 has 88 divisors (see below), whose sum is σ = 136624968. Its totient is φ = 20185088.

The previous prime is 53703673. The next prime is 53703701. The reversal of 53703680 is 8630735.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1401856 + 52301824 = 1184^2 + 7232^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86732 + ... + 87348.

Almost surely, 2^53703680 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 53703680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68312484).

53703680 is an abundant number, since it is smaller than the sum of its proper divisors (82921288).

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

53703680 is a wasteful number, since it uses less digits than its factorization.

53703680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659 (or 641 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 53703680 is about 7328.2794706534. The cubic root of 53703680 is about 377.2836764792.

The spelling of 53703680 in words is "fifty-three million, seven hundred three thousand, six hundred eighty".