52646478 has 16 divisors (see below), whose sum is σ = 105366096. Its totient is φ = 17536640.

The previous prime is 52646443. The next prime is 52646479. The reversal of 52646478 is 87464625.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52646479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12118 + ... + 15878.

It is an arithmetic number, because the mean of its divisors is an integer number (6585381).

Almost surely, 2^52646478 is an apocalyptic number.

52646478 is an abundant number, since it is smaller than the sum of its proper divisors (52719618).

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

52646478 is a wasteful number, since it uses less digits than its factorization.

52646478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6099.

The product of its digits is 322560, while the sum is 42.

The square root of 52646478 is about 7255.7892747791. The cubic root of 52646478 is about 374.7915356907.

The spelling of 52646478 in words is "fifty-two million, six hundred forty-six thousand, four hundred seventy-eight".