5431656551 has 4 divisors (see below), whose sum is σ = 5431845312. Its totient is φ = 5431467792.

The previous prime is 5431656547. The next prime is 5431656619. The reversal of 5431656551 is 1556561345.

5431656551 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 5431656551 - 2² = 5431656547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5431656499 and 5431656508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5431616551) 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, 41246 + ... + 112091.

It is an arithmetic number, because the mean of its divisors is an integer number (1357961328).

Almost surely, 2^5431656551 is an apocalyptic number.

5431656551 is a deficient number, since it is larger than the sum of its proper divisors (188761).

5431656551 is a wasteful number, since it uses less digits than its factorization.

5431656551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188760.

The product of its digits is 270000, while the sum is 41.

The square root of 5431656551 is about 73699.7730729207. The cubic root of 5431656551 is about 1757.8322734012.

The spelling of 5431656551 in words is "five billion, four hundred thirty-one million, six hundred fifty-six thousand, five hundred fifty-one".