53378615 has 8 divisors (see below), whose sum is σ = 64715280. Its totient is φ = 42262272.

The previous prime is 53378603. The next prime is 53378639. The reversal of 53378615 is 51687335.

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

It is a cyclic number.

It is not a de Polignac number, because 53378615 - 2⁸ = 53378359 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54545 + ... + 55514.

It is an arithmetic number, because the mean of its divisors is an integer number (8089410).

Almost surely, 2^53378615 is an apocalyptic number.

53378615 is a deficient number, since it is larger than the sum of its proper divisors (11336665).

53378615 is a wasteful number, since it uses less digits than its factorization.

53378615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110161.

The product of its digits is 75600, while the sum is 38.

The square root of 53378615 is about 7306.0669994190. The cubic root of 53378615 is about 376.5209106172.

The spelling of 53378615 in words is "fifty-three million, three hundred seventy-eight thousand, six hundred fifteen".