551571672 has 32 divisors (see below), whose sum is σ = 1451505600. Its totient is φ = 174180384.

The previous prime is 551571667. The next prime is 551571673. The reversal of 551571672 is 276175155.

It is a self number, because there is not a number n which added to its sum of digits gives 551571672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551571673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 604338 + ... + 605249.

It is an arithmetic number, because the mean of its divisors is an integer number (45359550).

Almost surely, 2^551571672 is an apocalyptic number.

It is an amenable number.

551571672 is an abundant number, since it is smaller than the sum of its proper divisors (899933928).

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

551571672 is a wasteful number, since it uses less digits than its factorization.

551571672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209615 (or 1209611 counting only the distinct ones).

The product of its digits is 73500, while the sum is 39.

The square root of 551571672 is about 23485.5630547790. The cubic root of 551571672 is about 820.1009552482.

The spelling of 551571672 in words is "five hundred fifty-one million, five hundred seventy-one thousand, six hundred seventy-two".