51251554410 has 96 divisors (see below), whose sum is σ = 143486017920. Its totient is φ = 11681889408.

The previous prime is 51251554331. The next prime is 51251554463. The reversal of 51251554410 is 1445515215.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 479172 + ... + 576288.

It is an arithmetic number, because the mean of its divisors is an integer number (1494646020).

Almost surely, 2^51251554410 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51251554410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71743008960).

51251554410 is an abundant number, since it is smaller than the sum of its proper divisors (92234463510).

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

51251554410 is a wasteful number, since it uses less digits than its factorization.

51251554410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97500 (or 97493 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 33.

The spelling of 51251554410 in words is "fifty-one billion, two hundred fifty-one million, five hundred fifty-four thousand, four hundred ten".