51123525345043 has 16 divisors (see below), whose sum is σ = 53222017593600. Its totient is φ = 49075087632480.

The previous prime is 51123525345031. The next prime is 51123525345097. The reversal of 51123525345043 is 34054352532115.

It is a cyclic number.

It is not a de Polignac number, because 51123525345043 - 2⁴⁵ = 15939153256211 is a prime.

It is a super-2 number, since 2×51123525345043² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51123525345743) 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, 38082063 + ... + 39401656.

It is an arithmetic number, because the mean of its divisors is an integer number (3326376099600).

Almost surely, 2^{51123525345043} is an apocalyptic number.

51123525345043 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

51123525345043 is a deficient number, since it is larger than the sum of its proper divisors (2098492248557).

51123525345043 is a wasteful number, since it uses less digits than its factorization.

51123525345043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77484042.

The product of its (nonzero) digits is 1080000, while the sum is 43.

Adding to 51123525345043 its reverse (34054352532115), we get a palindrome (85177877877158).

The spelling of 51123525345043 in words is "fifty-one trillion, one hundred twenty-three billion, five hundred twenty-five million, three hundred forty-five thousand, forty-three".