51525342444 has 12 divisors (see below), whose sum is σ = 120225799064. Its totient is φ = 17175114144.

The previous prime is 51525342439. The next prime is 51525342461. The reversal of 51525342444 is 44424352515.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2146889257 + ... + 2146889280.

Almost surely, 2^51525342444 is an apocalyptic number.

It is an amenable number.

51525342444 is an abundant number, since it is smaller than the sum of its proper divisors (68700456620).

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

51525342444 is a wasteful number, since it uses less digits than its factorization.

51525342444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4293778544 (or 4293778542 counting only the distinct ones).

The product of its digits is 384000, while the sum is 39.

Adding to 51525342444 its reverse (44424352515), we get a palindrome (95949694959).

The spelling of 51525342444 in words is "fifty-one billion, five hundred twenty-five million, three hundred forty-two thousand, four hundred forty-four".