52421878 has 8 divisors (see below), whose sum is σ = 78733872. Its totient is φ = 26177256.

The previous prime is 52421869. The next prime is 52421891. The reversal of 52421878 is 87812425.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14850 + ... + 18037.

It is an arithmetic number, because the mean of its divisors is an integer number (9841734).

Almost surely, 2^52421878 is an apocalyptic number.

52421878 is a deficient number, since it is larger than the sum of its proper divisors (26311994).

52421878 is a wasteful number, since it uses less digits than its factorization.

52421878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33686.

The product of its digits is 35840, while the sum is 37.

The square root of 52421878 is about 7240.2954359612. The cubic root of 52421878 is about 374.2577983708.

The spelling of 52421878 in words is "fifty-two million, four hundred twenty-one thousand, eight hundred seventy-eight".