551253511520 has 96 divisors (see below), whose sum is σ = 1329759063360. Its totient is φ = 215906549760.

The previous prime is 551253511519. The next prime is 551253511531. The reversal of 551253511520 is 25115352155.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1278800 + ... + 1654640.

It is an arithmetic number, because the mean of its divisors is an integer number (13851656910).

Almost surely, 2^551253511520 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 551253511520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (664879531680).

551253511520 is an abundant number, since it is smaller than the sum of its proper divisors (778505551840).

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

551253511520 is a wasteful number, since it uses less digits than its factorization.

551253511520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376048 (or 376040 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 35.

Adding to 551253511520 its reverse (25115352155), we get a palindrome (576368863675).

The spelling of 551253511520 in words is "five hundred fifty-one billion, two hundred fifty-three million, five hundred eleven thousand, five hundred twenty".