51415225351 has 4 divisors (see below), whose sum is σ = 58760257552. Its totient is φ = 44070193152.

The previous prime is 51415225349. The next prime is 51415225361. The reversal of 51415225351 is 15352251415.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15352251415 = 5 ⋅3070450283.

It is a cyclic number.

It is not a de Polignac number, because 51415225351 - 2¹ = 51415225349 is a prime.

It is a super-2 number, since 2×51415225351² (a number of 22 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 (51415225361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3672516090 + ... + 3672516103.

It is an arithmetic number, because the mean of its divisors is an integer number (14690064388).

Almost surely, 2^51415225351 is an apocalyptic number.

51415225351 is a deficient number, since it is larger than the sum of its proper divisors (7345032201).

51415225351 is an equidigital number, since it uses as much as digits as its factorization.

51415225351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7345032200.

The product of its digits is 30000, while the sum is 34.

Adding to 51415225351 its reverse (15352251415), we get a palindrome (66767476766).

The spelling of 51415225351 in words is "fifty-one billion, four hundred fifteen million, two hundred twenty-five thousand, three hundred fifty-one".