53308378 has 4 divisors (see below), whose sum is σ = 79962570. Its totient is φ = 26654188.

The previous prime is 53308369. The next prime is 53308391. The reversal of 53308378 is 87380335.

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., 50509449 + 2798929 = 7107^2 + 1673^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13327093 + ... + 13327096.

Almost surely, 2^53308378 is an apocalyptic number.

53308378 is a deficient number, since it is larger than the sum of its proper divisors (26654192).

53308378 is a wasteful number, since it uses less digits than its factorization.

53308378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26654191.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 53308378 is about 7301.2586586150. The cubic root of 53308378 is about 376.3556927236.

The spelling of 53308378 in words is "fifty-three million, three hundred eight thousand, three hundred seventy-eight".