51546551 has 8 divisors (see below), whose sum is σ = 60280704. Its totient is φ = 43155000.

The previous prime is 51546529. The next prime is 51546613. The reversal of 51546551 is 15564515.

51546551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 51546551 - 2¹⁸ = 51284407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51546511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85325 + ... + 85926.

It is an arithmetic number, because the mean of its divisors is an integer number (7535088).

Almost surely, 2^51546551 is an apocalyptic number.

51546551 is a deficient number, since it is larger than the sum of its proper divisors (8734153).

51546551 is a wasteful number, since it uses less digits than its factorization.

51546551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171301.

The product of its digits is 15000, while the sum is 32.

The square root of 51546551 is about 7179.5926764685. The cubic root of 51546551 is about 372.1630085885.

The spelling of 51546551 in words is "fifty-one million, five hundred forty-six thousand, five hundred fifty-one".