51544501400551 has 8 divisors (see below), whose sum is σ = 53324036498880. Its totient is φ = 49765108868832.

The previous prime is 51544501400521. The next prime is 51544501400629. The reversal of 51544501400551 is 15500410544515.

It is a happy number.

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 51544501400551 - 2⁵ = 51544501400519 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 (51544501400521) 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, 34905820 + ... + 36352513.

It is an arithmetic number, because the mean of its divisors is an integer number (6665504562360).

Almost surely, 2^{51544501400551} is an apocalyptic number.

51544501400551 is a deficient number, since it is larger than the sum of its proper divisors (1779535098329).

51544501400551 is a wasteful number, since it uses less digits than its factorization.

51544501400551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71283305.

The product of its (nonzero) digits is 200000, while the sum is 40.

The spelling of 51544501400551 in words is "fifty-one trillion, five hundred forty-four billion, five hundred one million, four hundred thousand, five hundred fifty-one".