52251628 has 48 divisors (see below), whose sum is σ = 108267264. Its totient is φ = 21752640.

The previous prime is 52251601. The next prime is 52251637. The reversal of 52251628 is 82615225.

It is a self number, because there is not a number n which added to its sum of digits gives 52251628.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95251 + ... + 95797.

It is an arithmetic number, because the mean of its divisors is an integer number (2255568).

Almost surely, 2^52251628 is an apocalyptic number.

It is an amenable number.

52251628 is an abundant number, since it is smaller than the sum of its proper divisors (56015636).

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

52251628 is a wasteful number, since it uses less digits than its factorization.

52251628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742 (or 740 counting only the distinct ones).

The product of its digits is 9600, while the sum is 31.

The square root of 52251628 is about 7228.5287576380. The cubic root of 52251628 is about 373.8522012204.

The spelling of 52251628 in words is "fifty-two million, two hundred fifty-one thousand, six hundred twenty-eight".