51250073532 has 192 divisors, whose sum is σ = 141980160000. Its totient is φ = 14380015104.

The previous prime is 51250073521. The next prime is 51250073543. The reversal of 51250073532 is 23537005215.

It is an interprime number because it is at equal distance from previous prime (51250073521) and next prime (51250073543).

It is a junction number, because it is equal to n+sod(n) for n = 51250073493 and 51250073502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 90070144 + ... + 90070712.

It is an arithmetic number, because the mean of its divisors is an integer number (739480000).

Almost surely, 2^51250073532 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 51250073532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70990080000).

51250073532 is an abundant number, since it is smaller than the sum of its proper divisors (90730086468).

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

51250073532 is a wasteful number, since it uses less digits than its factorization.

51250073532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953 (or 937 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 33.

Adding to 51250073532 its reverse (23537005215), we get a palindrome (74787078747).

The spelling of 51250073532 in words is "fifty-one billion, two hundred fifty million, seventy-three thousand, five hundred thirty-two".