51555142915301 has 4 divisors (see below), whose sum is σ = 51555218923104. Its totient is φ = 51555066907500.

The previous prime is 51555142915271. The next prime is 51555142915337. The reversal of 51555142915301 is 10351924155515.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51555142915301 is a prime.

It is a super-2 number, since 2×51555142915301² (a number of 28 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 (57555142915301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36977225 + ... + 38346126.

It is an arithmetic number, because the mean of its divisors is an integer number (12888804730776).

Almost surely, 2^{51555142915301} is an apocalyptic number.

It is an amenable number.

51555142915301 is a deficient number, since it is larger than the sum of its proper divisors (76007803).

51555142915301 is an equidigital number, since it uses as much as digits as its factorization.

51555142915301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76007802.

The product of its (nonzero) digits is 675000, while the sum is 47.

The spelling of 51555142915301 in words is "fifty-one trillion, five hundred fifty-five billion, one hundred forty-two million, nine hundred fifteen thousand, three hundred one".