551460816 has 60 divisors (see below), whose sum is σ = 1554483840. Its totient is φ = 182491200.

The previous prime is 551460809. The next prime is 551460827. The reversal of 551460816 is 618064155.

551460816 is a `hidden beast` number, since 5 + 514 + 60 + 81 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 6241 + ... + 33791.

It is an arithmetic number, because the mean of its divisors is an integer number (25908064).

Almost surely, 2^551460816 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 551460816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (777241920).

551460816 is an abundant number, since it is smaller than the sum of its proper divisors (1003023024).

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

551460816 is a wasteful number, since it uses less digits than its factorization.

551460816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27704 (or 27695 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 551460816 is about 23483.2028479933. The cubic root of 551460816 is about 820.0460097126.

The spelling of 551460816 in words is "five hundred fifty-one million, four hundred sixty thousand, eight hundred sixteen".