551787852 has 96 divisors (see below), whose sum is σ = 1610509824. Its totient is φ = 142848000.

The previous prime is 551787839. The next prime is 551787857. The reversal of 551787852 is 258787155.

It is a super-2 number, since 2×551787852² = 608939667229547808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (551787857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 343852 + ... + 345452.

It is an arithmetic number, because the mean of its divisors is an integer number (16776144).

Almost surely, 2^551787852 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 551787852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (805254912).

551787852 is an abundant number, since it is smaller than the sum of its proper divisors (1058721972).

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

551787852 is a wasteful number, since it uses less digits than its factorization.

551787852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1999 (or 1997 counting only the distinct ones).

The product of its digits is 784000, while the sum is 48.

The square root of 551787852 is about 23490.1650058062. The cubic root of 551787852 is about 820.2080832225.

The spelling of 551787852 in words is "five hundred fifty-one million, seven hundred eighty-seven thousand, eight hundred fifty-two".