53803278 has 40 divisors (see below), whose sum is σ = 122383272. Its totient is φ = 17663184.

The previous prime is 53803271. The next prime is 53803327. The reversal of 53803278 is 87230835.

53803278 is a `hidden beast` number, since 5 + 380 + 3 + 278 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53803271) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8376 + ... + 13332.

Almost surely, 2^53803278 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53803278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61191636).

53803278 is an abundant number, since it is smaller than the sum of its proper divisors (68579994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53803278 is a wasteful number, since it uses less digits than its factorization.

53803278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5038 (or 5029 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 53803278 is about 7335.0717787899. The cubic root of 53803278 is about 377.5167672333.

The spelling of 53803278 in words is "fifty-three million, eight hundred three thousand, two hundred seventy-eight".