53810378 has 4 divisors (see below), whose sum is σ = 80715570. Its totient is φ = 26905188.

The previous prime is 53810371. The next prime is 53810387. The reversal of 53810378 is 87301835.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 34774609 + 19035769 = 5897^2 + 4363^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53810371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13452593 + ... + 13452596.

Almost surely, 2^53810378 is an apocalyptic number.

53810378 is a deficient number, since it is larger than the sum of its proper divisors (26905192).

53810378 is a wasteful number, since it uses less digits than its factorization.

53810378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26905191.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 53810378 is about 7335.5557390016. Note that the first 3 decimals coincide. The cubic root of 53810378 is about 377.5333724864.

The spelling of 53810378 in words is "fifty-three million, eight hundred ten thousand, three hundred seventy-eight".