555643374 has 96 divisors (see below), whose sum is σ = 1329646752. Its totient is φ = 153753600.

The previous prime is 555643331. The next prime is 555643397. The reversal of 555643374 is 473346555.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1066234 + ... + 1066754.

It is an arithmetic number, because the mean of its divisors is an integer number (13850487).

Almost surely, 2^555643374 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 555643374, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (664823376).

555643374 is an abundant number, since it is smaller than the sum of its proper divisors (774003378).

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

555643374 is a wasteful number, since it uses less digits than its factorization.

555643374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674 (or 663 counting only the distinct ones).

The product of its digits is 756000, while the sum is 42.

The square root of 555643374 is about 23572.0888764657. The cubic root of 555643374 is about 822.1140049429.

The spelling of 555643374 in words is "five hundred fifty-five million, six hundred forty-three thousand, three hundred seventy-four".