53117378 has 8 divisors (see below), whose sum is σ = 79894272. Its totient is φ = 26485956.

The previous prime is 53117371. The next prime is 53117381. The reversal of 53117378 is 87371135.

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

It is not an unprimeable number, because it can be changed into a prime (53117371) 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, 35450 + ... + 36917.

It is an arithmetic number, because the mean of its divisors is an integer number (9986784).

Almost surely, 2^53117378 is an apocalyptic number.

53117378 is a deficient number, since it is larger than the sum of its proper divisors (26776894).

53117378 is a wasteful number, since it uses less digits than its factorization.

53117378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72736.

The product of its digits is 17640, while the sum is 35.

The square root of 53117378 is about 7288.1669849147. The cubic root of 53117378 is about 375.9056699008.

The spelling of 53117378 in words is "fifty-three million, one hundred seventeen thousand, three hundred seventy-eight".