51123074681525 has 72 divisors (see below), whose sum is σ = 82408389275520. Its totient is φ = 31091638368000.

The previous prime is 51123074681519. The next prime is 51123074681543. The reversal of 51123074681525 is 52518647032115.

It is not a de Polignac number, because 51123074681525 - 2⁶ = 51123074681461 is a prime.

It is a super-3 number, since 3×51123074681525³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 45714845 + ... + 46819794.

It is an arithmetic number, because the mean of its divisors is an integer number (1144560962160).

Almost surely, 2^{51123074681525} is an apocalyptic number.

51123074681525 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51123074681525 is a deficient number, since it is larger than the sum of its proper divisors (31285314593995).

51123074681525 is a wasteful number, since it uses less digits than its factorization.

51123074681525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92534715 (or 92534703 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 50.

The spelling of 51123074681525 in words is "fifty-one trillion, one hundred twenty-three billion, seventy-four million, six hundred eighty-one thousand, five hundred twenty-five".