53278450 has 12 divisors (see below), whose sum is σ = 99098010. Its totient is φ = 21311360.

The previous prime is 53278439. The next prime is 53278487. The reversal of 53278450 is 5487235.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 47844889 + 5433561 = 6917^2 + 2331^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 532735 + ... + 532834.

Almost surely, 2^53278450 is an apocalyptic number.

53278450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53278450 is a deficient number, since it is larger than the sum of its proper divisors (45819560).

53278450 is a wasteful number, since it uses less digits than its factorization.

53278450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065581 (or 1065576 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 53278450 is about 7299.2088612397. The cubic root of 53278450 is about 376.2852492518.

The spelling of 53278450 in words is "fifty-three million, two hundred seventy-eight thousand, four hundred fifty".