551351340 has 96 divisors (see below), whose sum is σ = 1725097920. Its totient is φ = 146188800.

The previous prime is 551351309. The next prime is 551351363. The reversal of 551351340 is 43153155.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94920 + ... + 100560.

It is an arithmetic number, because the mean of its divisors is an integer number (17969770).

Almost surely, 2^551351340 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 551351340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (862548960).

551351340 is an abundant number, since it is smaller than the sum of its proper divisors (1173746580).

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

551351340 is a wasteful number, since it uses less digits than its factorization.

551351340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5840 (or 5832 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 551351340 is about 23480.8717896078. The cubic root of 551351340 is about 819.9917409440.

The spelling of 551351340 in words is "five hundred fifty-one million, three hundred fifty-one thousand, three hundred forty".