53647680 has 224 divisors, whose sum is σ = 184343040. Its totient is φ = 13189120.

The previous prime is 53647679. The next prime is 53647681. The reversal of 53647680 is 8674635.

It is an interprime number because it is at equal distance from previous prime (53647679) and next prime (53647681).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53647681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1141417 + ... + 1141463.

It is an arithmetic number, because the mean of its divisors is an integer number (822960).

Almost surely, 2^53647680 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 53647680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92171520).

53647680 is an abundant number, since it is smaller than the sum of its proper divisors (130695360).

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

53647680 is a wasteful number, since it uses less digits than its factorization.

53647680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 53647680 is about 7324.4576591035. The cubic root of 53647680 is about 377.1524922109.

The spelling of 53647680 in words is "fifty-three million, six hundred forty-seven thousand, six hundred eighty".