53828378 has 4 divisors (see below), whose sum is σ = 80742570. Its totient is φ = 26914188.

The previous prime is 53828371. The next prime is 53828381. The reversal of 53828378 is 87382835.

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., 53246209 + 582169 = 7297^2 + 763^2 .

It is a super-2 number, since 2×53828378² = 5794988556221768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53828371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13457093 + ... + 13457096.

Almost surely, 2^53828378 is an apocalyptic number.

53828378 is a deficient number, since it is larger than the sum of its proper divisors (26914192).

53828378 is a wasteful number, since it uses less digits than its factorization.

53828378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26914191.

The product of its digits is 322560, while the sum is 44.

The square root of 53828378 is about 7336.7825373252. The cubic root of 53828378 is about 377.5754637668.

Multiplying 53828378 by its sum of digits (44), we get a palindrome (2368448632).

The spelling of 53828378 in words is "fifty-three million, eight hundred twenty-eight thousand, three hundred seventy-eight".