53891478 has 24 divisors (see below), whose sum is σ = 116958816. Its totient is φ = 17934000.

The previous prime is 53891473. The next prime is 53891491. The reversal of 53891478 is 87419835.

53891478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53891473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10483 + ... + 14753.

It is an arithmetic number, because the mean of its divisors is an integer number (4873284).

Almost surely, 2^53891478 is an apocalyptic number.

53891478 is an abundant number, since it is smaller than the sum of its proper divisors (63067338).

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

53891478 is a wasteful number, since it uses less digits than its factorization.

53891478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4980 (or 4977 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 53891478 is about 7341.0815279494. The cubic root of 53891478 is about 377.7229430279.

The spelling of 53891478 in words is "fifty-three million, eight hundred ninety-one thousand, four hundred seventy-eight".