53780378 has 8 divisors (see below), whose sum is σ = 80742420. Its totient is φ = 26866240.

The previous prime is 53780369. The next prime is 53780387. The reversal of 53780378 is 87308735.

It is an interprime number because it is at equal distance from previous prime (53780369) and next prime (53780387).

It can be written as a sum of positive squares in 2 ways, for example, as 53392249 + 388129 = 7307^2 + 623^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9023 + ... + 13746.

Almost surely, 2^53780378 is an apocalyptic number.

53780378 is a deficient number, since it is larger than the sum of its proper divisors (26962042).

53780378 is a wasteful number, since it uses less digits than its factorization.

53780378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23952.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 53780378 is about 7333.5106190692. The cubic root of 53780378 is about 377.4631994885.

The spelling of 53780378 in words is "fifty-three million, seven hundred eighty thousand, three hundred seventy-eight".