52642878 has 16 divisors (see below), whose sum is σ = 107012496. Its totient is φ = 17259840.

The previous prime is 52642861. The next prime is 52642903. The reversal of 52642878 is 87824625.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71551 + ... + 72282.

It is an arithmetic number, because the mean of its divisors is an integer number (6688281).

Almost surely, 2^52642878 is an apocalyptic number.

52642878 is an abundant number, since it is smaller than the sum of its proper divisors (54369618).

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

52642878 is a wasteful number, since it uses less digits than its factorization.

52642878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143899.

The product of its digits is 215040, while the sum is 42.

The square root of 52642878 is about 7255.5411927712. The cubic root of 52642878 is about 374.7829926673.

The spelling of 52642878 in words is "fifty-two million, six hundred forty-two thousand, eight hundred seventy-eight".