551450289264 has 240 divisors, whose sum is σ = 1760648695200. Its totient is φ = 148012075008.

The previous prime is 551450289263. The next prime is 551450289277. The reversal of 551450289264 is 462982054155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551450289263) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2414442 + ... + 2632950.

It is an arithmetic number, because the mean of its divisors is an integer number (7336036230).

Almost surely, 2^551450289264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551450289264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (880324347600).

551450289264 is an abundant number, since it is smaller than the sum of its proper divisors (1209198405936).

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

551450289264 is a wasteful number, since it uses less digits than its factorization.

551450289264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218600 (or 218587 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 51.

The spelling of 551450289264 in words is "five hundred fifty-one billion, four hundred fifty million, two hundred eighty-nine thousand, two hundred sixty-four".