551553552 has 120 divisors (see below), whose sum is σ = 1742120640. Its totient is φ = 161360640.

The previous prime is 551553551. The next prime is 551553671. The reversal of 551553552 is 255355155.

551553552 is a `hidden beast` number, since 5 + 51 + 5 + 53 + 552 = 666.

It is a super-2 number, since 2×551553552² = 608422641447633408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (551553551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39933 + ... + 51939.

It is an arithmetic number, because the mean of its divisors is an integer number (14517672).

Almost surely, 2^551553552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551553552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (871060320).

551553552 is an abundant number, since it is smaller than the sum of its proper divisors (1190567088).

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

551553552 is a wasteful number, since it uses less digits than its factorization.

551553552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12061 (or 12052 counting only the distinct ones).

The product of its digits is 93750, while the sum is 36.

The square root of 551553552 is about 23485.1772827032. The cubic root of 551553552 is about 820.0919746130.

The spelling of 551553552 in words is "five hundred fifty-one million, five hundred fifty-three thousand, five hundred fifty-two".