551601560 has 16 divisors (see below), whose sum is σ = 1241103600. Its totient is φ = 220640608.

The previous prime is 551601529. The next prime is 551601563. The reversal of 551601560 is 65106155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551601563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6894980 + ... + 6895059.

It is an arithmetic number, because the mean of its divisors is an integer number (77568975).

Almost surely, 2^551601560 is an apocalyptic number.

It is an amenable number.

551601560 is an abundant number, since it is smaller than the sum of its proper divisors (689502040).

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

551601560 is a wasteful number, since it uses less digits than its factorization.

551601560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13790050 (or 13790046 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 551601560 is about 23486.1993519599. The cubic root of 551601560 is about 820.1157679105.

The spelling of 551601560 in words is "five hundred fifty-one million, six hundred one thousand, five hundred sixty".