51250053120 has 480 divisors, whose sum is σ = 193670270976. Its totient is φ = 11336417280.

The previous prime is 51250053103. The next prime is 51250053137. The reversal of 51250053120 is 2135005215.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51250053103) and next prime (51250053137).

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1653227505 + ... + 1653227535.

Almost surely, 2^51250053120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51250053120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96835135488).

51250053120 is an abundant number, since it is smaller than the sum of its proper divisors (142420217856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51250053120 is an frugal number, since it uses more digits than its factorization.

51250053120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 48 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

Adding to 51250053120 its reverse (2135005215), we get a palindrome (53385058335).

The spelling of 51250053120 in words is "fifty-one billion, two hundred fifty million, fifty-three thousand, one hundred twenty".