51145001002 has 32 divisors (see below), whose sum is σ = 83685127680. Its totient is φ = 23353712640.

The previous prime is 51145000903. The next prime is 51145001003. The reversal of 51145001002 is 20010054115.

51145001002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51145001002² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (51145001003) 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, 218278 + ... + 387214.

It is an arithmetic number, because the mean of its divisors is an integer number (2615160240).

Almost surely, 2^51145001002 is an apocalyptic number.

51145001002 is a deficient number, since it is larger than the sum of its proper divisors (32540126678).

51145001002 is a wasteful number, since it uses less digits than its factorization.

51145001002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169246.

The product of its (nonzero) digits is 200, while the sum is 19.

Adding to 51145001002 its reverse (20010054115), we get a palindrome (71155055117).

The spelling of 51145001002 in words is "fifty-one billion, one hundred forty-five million, one thousand, two".