551864752 has 20 divisors (see below), whose sum is σ = 1094105320. Its totient is φ = 269515008.

The previous prime is 551864749. The next prime is 551864771. The reversal of 551864752 is 257468155.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 551864699 and 551864708.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400377 + ... + 401752.

It is an arithmetic number, because the mean of its divisors is an integer number (54705266).

Almost surely, 2^551864752 is an apocalyptic number.

It is an amenable number.

551864752 is a deficient number, since it is larger than the sum of its proper divisors (542240568).

551864752 is a wasteful number, since it uses less digits than its factorization.

551864752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802180 (or 802174 counting only the distinct ones).

The product of its digits is 336000, while the sum is 43.

The square root of 551864752 is about 23491.8018040337. The cubic root of 551864752 is about 820.2461842617.

The spelling of 551864752 in words is "five hundred fifty-one million, eight hundred sixty-four thousand, seven hundred fifty-two".