51003001156 has 12 divisors (see below), whose sum is σ = 89426570940. Its totient is φ = 25452552320.

The previous prime is 51003001121. The next prime is 51003001157. The reversal of 51003001156 is 65110030015.

It can be written as a sum of positive squares in 2 ways, for example, as 15363602500 + 35639398656 = 123950^2 + 188784^2 .

It is a super-2 number, since 2×51003001156² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51003001157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12234721 + ... + 12238888.

It is an arithmetic number, because the mean of its divisors is an integer number (7452214245).

Almost surely, 2^51003001156 is an apocalyptic number.

It is an amenable number.

51003001156 is a deficient number, since it is larger than the sum of its proper divisors (38423569784).

51003001156 is a wasteful number, since it uses less digits than its factorization.

51003001156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24474134 (or 24474132 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 22.

The spelling of 51003001156 in words is "fifty-one billion, three million, one thousand, one hundred fifty-six".