51125505352502 has 32 divisors (see below), whose sum is σ = 89005961099520. Its totient is φ = 21572795368800.

The previous prime is 51125505352463. The next prime is 51125505352541. The reversal of 51125505352502 is 20525350552115.

It is an interprime number because it is at equal distance from previous prime (51125505352463) and next prime (51125505352541).

It is a super-2 number, since 2×51125505352502² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51125505352502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100743128 + ... + 101249339.

It is an arithmetic number, because the mean of its divisors is an integer number (2781436284360).

Almost surely, 2^{51125505352502} is an apocalyptic number.

51125505352502 is a deficient number, since it is larger than the sum of its proper divisors (37880455747018).

51125505352502 is a wasteful number, since it uses less digits than its factorization.

51125505352502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201992756.

The product of its (nonzero) digits is 375000, while the sum is 41.

The spelling of 51125505352502 in words is "fifty-one trillion, one hundred twenty-five billion, five hundred five million, three hundred fifty-two thousand, five hundred two".