51100145302 has 4 divisors (see below), whose sum is σ = 76650217956. Its totient is φ = 25550072650.

The previous prime is 51100145297. The next prime is 51100145303. The reversal of 51100145302 is 20354100115.

It is a happy number.

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

It is a super-2 number, since 2×51100145302² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51100145303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12775036324 + ... + 12775036327.

It is an arithmetic number, because the mean of its divisors is an integer number (19162554489).

Almost surely, 2^51100145302 is an apocalyptic number.

51100145302 is a deficient number, since it is larger than the sum of its proper divisors (25550072654).

51100145302 is a wasteful number, since it uses less digits than its factorization.

51100145302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25550072653.

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 51100145302 its reverse (20354100115), we get a palindrome (71454245417).

The spelling of 51100145302 in words is "fifty-one billion, one hundred million, one hundred forty-five thousand, three hundred two".