553256520 has 64 divisors (see below), whose sum is σ = 1684566720. Its totient is φ = 145330944.

The previous prime is 553256491. The next prime is 553256563. The reversal of 553256520 is 25652355.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26367 + ... + 42446.

It is an arithmetic number, because the mean of its divisors is an integer number (26321355).

Almost surely, 2^553256520 is an apocalyptic number.

It is an amenable number.

553256520 is an abundant number, since it is smaller than the sum of its proper divisors (1131310200).

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

553256520 is a wasteful number, since it uses less digits than its factorization.

553256520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68894 (or 68890 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 33.

The square root of 553256520 is about 23521.4055702460. The cubic root of 553256520 is about 820.9351417493.

The spelling of 553256520 in words is "five hundred fifty-three million, two hundred fifty-six thousand, five hundred twenty".