53086478 has 8 divisors (see below), whose sum is σ = 84313872. Its totient is φ = 24981856.

The previous prime is 53086471. The next prime is 53086493. The reversal of 53086478 is 87468035.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53086471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 780650 + ... + 780717.

It is an arithmetic number, because the mean of its divisors is an integer number (10539234).

Almost surely, 2^53086478 is an apocalyptic number.

53086478 is a deficient number, since it is larger than the sum of its proper divisors (31227394).

53086478 is a wasteful number, since it uses less digits than its factorization.

53086478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561386.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 53086478 is about 7286.0468019359. The cubic root of 53086478 is about 375.8327638280.

The spelling of 53086478 in words is "fifty-three million, eighty-six thousand, four hundred seventy-eight".