51431010532 has 24 divisors (see below), whose sum is σ = 98903175840. Its totient is φ = 23207088960.

The previous prime is 51431010517. The next prime is 51431010577. The reversal of 51431010532 is 23501013415.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 51431010497 and 51431010506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4259982 + ... + 4272037.

It is an arithmetic number, because the mean of its divisors is an integer number (4120965660).

Almost surely, 2^51431010532 is an apocalyptic number.

It is an amenable number.

51431010532 is a deficient number, since it is larger than the sum of its proper divisors (47472165308).

51431010532 is a wasteful number, since it uses less digits than its factorization.

51431010532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8532171 (or 8532169 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 51431010532 its reverse (23501013415), we get a palindrome (74932023947).

The spelling of 51431010532 in words is "fifty-one billion, four hundred thirty-one million, ten thousand, five hundred thirty-two".