551651656051 has 4 divisors (see below), whose sum is σ = 551802425400. Its totient is φ = 551500886704.

The previous prime is 551651656043. The next prime is 551651656097. The reversal of 551651656051 is 150656156155.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 551651656051 - 2³ = 551651656043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 551651655992 and 551651656010.

It is not an unprimeable number, because it can be changed into a prime (551651651051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75379186 + ... + 75386503.

It is an arithmetic number, because the mean of its divisors is an integer number (137950606350).

Almost surely, 2^551651656051 is an apocalyptic number.

551651656051 is a deficient number, since it is larger than the sum of its proper divisors (150769349).

551651656051 is a wasteful number, since it uses less digits than its factorization.

551651656051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150769348.

The product of its (nonzero) digits is 675000, while the sum is 46.

The spelling of 551651656051 in words is "five hundred fifty-one billion, six hundred fifty-one million, six hundred fifty-six thousand, fifty-one".