551516525461 has 8 divisors (see below), whose sum is σ = 601759223424. Its totient is φ = 501291299520.

The previous prime is 551516525447. The next prime is 551516525513. The reversal of 551516525461 is 164525615155.

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

It is not a de Polignac number, because 551516525461 - 2¹³ = 551516517269 is a prime.

It is a super-2 number, since 2×551516525461² (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 (551516525561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4301956 + ... + 4428301.

It is an arithmetic number, because the mean of its divisors is an integer number (75219902928).

Almost surely, 2^551516525461 is an apocalyptic number.

It is an amenable number.

551516525461 is a deficient number, since it is larger than the sum of its proper divisors (50242697963).

551516525461 is a wasteful number, since it uses less digits than its factorization.

551516525461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8736011.

The product of its digits is 900000, while the sum is 46.

The spelling of 551516525461 in words is "five hundred fifty-one billion, five hundred sixteen million, five hundred twenty-five thousand, four hundred sixty-one".