53347680 has 192 divisors, whose sum is σ = 191056320. Its totient is φ = 13897728.

The previous prime is 53347631. The next prime is 53347681. The reversal of 53347680 is 8674335.

It is a happy number.

53347680 is a `hidden beast` number, since 533 + 47 + 6 + 80 = 666.

It is a super-2 number, since 2×53347680² = 5691949922764800, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53347681) 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, 228844 + ... + 229076.

It is an arithmetic number, because the mean of its divisors is an integer number (995085).

Almost surely, 2^53347680 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 53347680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95528160).

53347680 is an abundant number, since it is smaller than the sum of its proper divisors (137708640).

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

53347680 is a wasteful number, since it uses less digits than its factorization.

53347680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310 (or 296 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 53347680 is about 7303.9496164746. The cubic root of 53347680 is about 376.4481603520.

The spelling of 53347680 in words is "fifty-three million, three hundred forty-seven thousand, six hundred eighty".