550400052 has 12 divisors (see below), whose sum is σ = 1284266816. Its totient is φ = 183466680.

The previous prime is 550400029. The next prime is 550400057. The reversal of 550400052 is 250004055.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550400057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22933324 + ... + 22933347.

Almost surely, 2^550400052 is an apocalyptic number.

It is an amenable number.

550400052 is an abundant number, since it is smaller than the sum of its proper divisors (733866764).

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

550400052 is a wasteful number, since it uses less digits than its factorization.

550400052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45866678 (or 45866676 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 550400052 is about 23460.6063860251. The cubic root of 550400052 is about 819.5198716158.

The spelling of 550400052 in words is "five hundred fifty million, four hundred thousand, fifty-two".