628522552 has 32 divisors (see below), whose sum is σ = 1383239520. Its totient is φ = 262085760.

The previous prime is 628522547. The next prime is 628522561. The reversal of 628522552 is 255225826.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (37).

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 7 ways as a sum of consecutive naturals, for example, 149599 + ... + 153742.

It is an arithmetic number, because the mean of its divisors is an integer number (43226235).

Almost surely, 2^628522552 is an apocalyptic number.

It is an amenable number.

628522552 is an abundant number, since it is smaller than the sum of its proper divisors (754716968).

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

628522552 is a wasteful number, since it uses less digits than its factorization.

628522552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303391 (or 303387 counting only the distinct ones).

The product of its digits is 96000, while the sum is 37.

The square root of 628522552 is about 25070.3520517762. The cubic root of 628522552 is about 856.5912261956.

The spelling of 628522552 in words is "six hundred twenty-eight million, five hundred twenty-two thousand, five hundred fifty-two".