52556550 has 24 divisors (see below), whose sum is σ = 130340616. Its totient is φ = 14015040.

The previous prime is 52556533. The next prime is 52556561. The reversal of 52556550 is 5565525.

It is a Curzon number.

It is a congruent number.

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, 175039 + ... + 175338.

It is an arithmetic number, because the mean of its divisors is an integer number (5430859).

Almost surely, 2^52556550 is an apocalyptic number.

52556550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

52556550 is an abundant number, since it is smaller than the sum of its proper divisors (77784066).

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

52556550 is a wasteful number, since it uses less digits than its factorization.

52556550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350392 (or 350387 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 33.

The square root of 52556550 is about 7249.5896435591. The cubic root of 52556550 is about 374.5780142083.

Subtracting from 52556550 its reverse (5565525), we obtain a square (46991025 = 6855²).

It can be divided in two parts, 525 and 56550, that added together give a palindrome (57075).

The spelling of 52556550 in words is "fifty-two million, five hundred fifty-six thousand, five hundred fifty".