552561561600 has 156 divisors (see below), whose sum is σ = 1826914873536. Its totient is φ = 147349667840.

The previous prime is 552561561581. The next prime is 552561561631. The reversal of 552561561600 is 6165165255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 592152 + ... + 1206551.

Almost surely, 2^552561561600 is an apocalyptic number.

552561561600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

552561561600 is an abundant number, since it is smaller than the sum of its proper divisors (1274353311936).

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

552561561600 is a wasteful number, since it uses less digits than its factorization.

552561561600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1798740 (or 1798713 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 42.

The spelling of 552561561600 in words is "five hundred fifty-two billion, five hundred sixty-one million, five hundred sixty-one thousand, six hundred".