51101012054 has 4 divisors (see below), whose sum is σ = 76651518084. Its totient is φ = 25550506026.

The previous prime is 51101012009. The next prime is 51101012057. The reversal of 51101012054 is 45021010115.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×51101012054² (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 (51101012057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12775253012 + ... + 12775253015.

It is an arithmetic number, because the mean of its divisors is an integer number (19162879521).

Almost surely, 2^51101012054 is an apocalyptic number.

51101012054 is a deficient number, since it is larger than the sum of its proper divisors (25550506030).

51101012054 is a wasteful number, since it uses less digits than its factorization.

51101012054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25550506029.

The product of its (nonzero) digits is 200, while the sum is 20.

Adding to 51101012054 its reverse (45021010115), we get a palindrome (96122022169).

The spelling of 51101012054 in words is "fifty-one billion, one hundred one million, twelve thousand, fifty-four".