53720678 has 8 divisors (see below), whose sum is σ = 87906600. Its totient is φ = 24418480.

The previous prime is 53720677. The next prime is 53720743. The reversal of 53720678 is 87602735.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×53720678² = 5771822489559368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53720677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1220903 + ... + 1220946.

It is an arithmetic number, because the mean of its divisors is an integer number (10988325).

Almost surely, 2^53720678 is an apocalyptic number.

53720678 is a deficient number, since it is larger than the sum of its proper divisors (34185922).

53720678 is a wasteful number, since it uses less digits than its factorization.

53720678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441862.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 53720678 is about 7329.4391327031. The cubic root of 53720678 is about 377.3234775471.

The spelling of 53720678 in words is "fifty-three million, seven hundred twenty thousand, six hundred seventy-eight".