51151420100223 has 20 divisors (see below), whose sum is σ = 80906167742400. Its totient is φ = 32095008689472.

The previous prime is 51151420100197. The next prime is 51151420100293. The reversal of 51151420100223 is 32200102415115.

It is a happy number.

51151420100223 is a `hidden beast` number, since 5 + 1 + 1 + 5 + 1 + 420 + 10 + 0 + 223 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-51151420100223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51151420100293) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18573499023 + ... + 18573501776.

It is an arithmetic number, because the mean of its divisors is an integer number (4045308387120).

Almost surely, 2^{51151420100223} is an apocalyptic number.

51151420100223 is a deficient number, since it is larger than the sum of its proper divisors (29754747642177).

51151420100223 is a wasteful number, since it uses less digits than its factorization.

51151420100223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37147000828 (or 37147000819 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 51151420100223 its reverse (32200102415115), we get a palindrome (83351522515338).

The spelling of 51151420100223 in words is "fifty-one trillion, one hundred fifty-one billion, four hundred twenty million, one hundred thousand, two hundred twenty-three".