51122455454 has 16 divisors (see below), whose sum is σ = 92793701088. Its totient is φ = 20620822272.

The previous prime is 51122455451. The next prime is 51122455487. The reversal of 51122455454 is 45455422115.

It is a super-2 number, since 2×51122455454² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51122455451) 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, 107399879 + ... + 107400354.

It is an arithmetic number, because the mean of its divisors is an integer number (5799606318).

Almost surely, 2^51122455454 is an apocalyptic number.

51122455454 is a deficient number, since it is larger than the sum of its proper divisors (41671245634).

51122455454 is a wasteful number, since it uses less digits than its factorization.

51122455454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214800259.

The product of its digits is 160000, while the sum is 38.

Adding to 51122455454 its reverse (45455422115), we get a palindrome (96577877569).

The spelling of 51122455454 in words is "fifty-one billion, one hundred twenty-two million, four hundred fifty-five thousand, four hundred fifty-four".