550397804544 has 855 divisors, whose sum is σ = 1999652113767. Its totient is φ = 150419275776.

The previous prime is 550397804533. The next prime is 550397804573. The reversal of 550397804544 is 445408793055.

It is a happy number.

The square root of 550397804544 is 741888.

It is a perfect power (a square), and thus also a powerful number.

550397804544 is a `hidden beast` number, since 5 + 5 + 0 + 3 + 97 + 8 + 0 + 4 + 544 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 23930339317 + ... + 23930339339.

Almost surely, 2^550397804544 is an apocalyptic number.

550397804544 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

550397804544 is the 741888-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550397804544

550397804544 is an abundant number, since it is smaller than the sum of its proper divisors (1449254309223).

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

550397804544 is an frugal number, since it uses more digits than its factorization.

550397804544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 35 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 54.

The spelling of 550397804544 in words is "five hundred fifty billion, three hundred ninety-seven million, eight hundred four thousand, five hundred forty-four".