51440150003 has 16 divisors (see below), whose sum is σ = 58576753152. Its totient is φ = 44715000000.

The previous prime is 51440149993. The next prime is 51440150017. The reversal of 51440150003 is 30005104415.

It is not a de Polignac number, because 51440150003 - 2²⁸ = 51171714547 is a prime.

It is a super-2 number, since 2×51440150003² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51440150063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 725378 + ... + 793128.

It is an arithmetic number, because the mean of its divisors is an integer number (3661047072).

Almost surely, 2^51440150003 is an apocalyptic number.

51440150003 is a deficient number, since it is larger than the sum of its proper divisors (7136603149).

51440150003 is a wasteful number, since it uses less digits than its factorization.

51440150003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70786.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 51440150003 its reverse (30005104415), we get a palindrome (81445254418).

The spelling of 51440150003 in words is "fifty-one billion, four hundred forty million, one hundred fifty thousand, three".