551220052351 has 8 divisors (see below), whose sum is σ = 553524917904. Its totient is φ = 548918068800.

The previous prime is 551220052349. The next prime is 551220052367. The reversal of 551220052351 is 153250022155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 551220052351 - 2¹ = 551220052349 is a prime.

It is a super-2 number, since 2×551220052351² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551220052051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336750 + ... + 1102651.

It is an arithmetic number, because the mean of its divisors is an integer number (69190614738).

Almost surely, 2^551220052351 is an apocalyptic number.

551220052351 is a deficient number, since it is larger than the sum of its proper divisors (2304865553).

551220052351 is a wasteful number, since it uses less digits than its factorization.

551220052351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441001.

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 551220052351 in words is "five hundred fifty-one billion, two hundred twenty million, fifty-two thousand, three hundred fifty-one".