53378769 has 8 divisors (see below), whose sum is σ = 71837280. Its totient is φ = 35253056.

The previous prime is 53378749. The next prime is 53378777. The reversal of 53378769 is 96787335.

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 53378769 - 2¹⁵ = 53346001 is a prime.

It is a super-2 number, since 2×53378769² = 5698585959910722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53378719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82824 + ... + 83465.

It is an arithmetic number, because the mean of its divisors is an integer number (8979660).

Almost surely, 2^53378769 is an apocalyptic number.

It is an amenable number.

53378769 is a deficient number, since it is larger than the sum of its proper divisors (18458511).

53378769 is a wasteful number, since it uses less digits than its factorization.

53378769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166399.

The product of its digits is 952560, while the sum is 48.

The square root of 53378769 is about 7306.0775385976. The cubic root of 53378769 is about 376.5212727108.

The spelling of 53378769 in words is "fifty-three million, three hundred seventy-eight thousand, seven hundred sixty-nine".