551333350040 has 128 divisors (see below), whose sum is σ = 1389082789440. Its totient is φ = 195244800000.

The previous prime is 551333350031. The next prime is 551333350069. The reversal of 551333350040 is 40053333155.

It is a junction number, because it is equal to n+sod(n) for n = 551333349979 and 551333350006.

It is a congruent number.

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, 2609150 + ... + 2812530.

Almost surely, 2^551333350040 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 551333350040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (694541394720).

551333350040 is an abundant number, since it is smaller than the sum of its proper divisors (837749439400).

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

551333350040 is a wasteful number, since it uses less digits than its factorization.

551333350040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203565 (or 203561 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 32.

Adding to 551333350040 its reverse (40053333155), we get a palindrome (591386683195).

The spelling of 551333350040 in words is "five hundred fifty-one billion, three hundred thirty-three million, three hundred fifty thousand, forty".