51442523552 has 96 divisors (see below), whose sum is σ = 116656049664. Its totient is φ = 21873888000.

The previous prime is 51442523537. The next prime is 51442523593. The reversal of 51442523552 is 25532524415.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35452427 + ... + 35453877.

It is an arithmetic number, because the mean of its divisors is an integer number (1215167184).

Almost surely, 2^51442523552 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 51442523552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58328024832).

51442523552 is an abundant number, since it is smaller than the sum of its proper divisors (65213526112).

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

51442523552 is a wasteful number, since it uses less digits than its factorization.

51442523552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2602 (or 2594 counting only the distinct ones).

The product of its digits is 240000, while the sum is 38.

The spelling of 51442523552 in words is "fifty-one billion, four hundred forty-two million, five hundred twenty-three thousand, five hundred fifty-two".