551517252 has 48 divisors (see below), whose sum is σ = 1511856192. Its totient is φ = 154270080.

The previous prime is 551517233. The next prime is 551517259. The reversal of 551517252 is 252715155.

551517252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (551517259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158983 + ... + 162414.

It is an arithmetic number, because the mean of its divisors is an integer number (31497004).

Almost surely, 2^551517252 is an apocalyptic number.

551517252 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

551517252 is an abundant number, since it is smaller than the sum of its proper divisors (960338940).

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

551517252 is a wasteful number, since it uses less digits than its factorization.

551517252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321428 (or 321426 counting only the distinct ones).

The product of its digits is 17500, while the sum is 33.

The square root of 551517252 is about 23484.4044420973. The cubic root of 551517252 is about 820.0739830135.

The spelling of 551517252 in words is "five hundred fifty-one million, five hundred seventeen thousand, two hundred fifty-two".