52550028 has 36 divisors (see below), whose sum is σ = 136078488. Its totient is φ = 17088960.

The previous prime is 52549969. The next prime is 52550033. The reversal of 52550028 is 82005525.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 52549983 and 52550010.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16326 + ... + 19277.

It is an arithmetic number, because the mean of its divisors is an integer number (3779958).

Almost surely, 2^52550028 is an apocalyptic number.

It is an amenable number.

52550028 is an abundant number, since it is smaller than the sum of its proper divisors (83528460).

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

52550028 is a wasteful number, since it uses less digits than its factorization.

52550028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35654 (or 35649 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 52550028 is about 7249.1398110397. The cubic root of 52550028 is about 374.5625191598.

The spelling of 52550028 in words is "fifty-two million, five hundred fifty thousand, twenty-eight".