551205424252 has 24 divisors (see below), whose sum is σ = 1104656112000. Its totient is φ = 235749768240.

The previous prime is 551205424193. The next prime is 551205424291. The reversal of 551205424252 is 252424502155.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20033002 + ... + 20060497.

It is an arithmetic number, because the mean of its divisors is an integer number (46027338000).

Almost surely, 2^551205424252 is an apocalyptic number.

It is an amenable number.

551205424252 is an abundant number, since it is smaller than the sum of its proper divisors (553450687748).

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

551205424252 is a wasteful number, since it uses less digits than its factorization.

551205424252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40094001 (or 40093999 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 37.

The spelling of 551205424252 in words is "five hundred fifty-one billion, two hundred five million, four hundred twenty-four thousand, two hundred fifty-two".