51121254223633 has 8 divisors (see below), whose sum is σ = 57128851727136. Its totient is φ = 45340358512800.

The previous prime is 51121254223601. The next prime is 51121254223657. The reversal of 51121254223633 is 33632245212115.

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 51121254223633 - 2⁵ = 51121254223601 is a prime.

It is a super-2 number, since 2×51121254223633² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51121254223033) 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, 56675447691 + ... + 56675448592.

It is an arithmetic number, because the mean of its divisors is an integer number (7141106465892).

Almost surely, 2^{51121254223633} is an apocalyptic number.

It is an amenable number.

51121254223633 is a deficient number, since it is larger than the sum of its proper divisors (6007597503503).

51121254223633 is a wasteful number, since it uses less digits than its factorization.

51121254223633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113350896335.

The product of its digits is 259200, while the sum is 40.

Adding to 51121254223633 its reverse (33632245212115), we get a palindrome (84753499435748).

The spelling of 51121254223633 in words is "fifty-one trillion, one hundred twenty-one billion, two hundred fifty-four million, two hundred twenty-three thousand, six hundred thirty-three".