51502397452 has 24 divisors (see below), whose sum is σ = 98414825040. Its totient is φ = 23388260160.

The previous prime is 51502397449. The next prime is 51502397461. The reversal of 51502397452 is 25479320515.

It is a happy number.

51502397452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 51502397399 and 51502397408.

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, 500443 + ... + 594514.

It is an arithmetic number, because the mean of its divisors is an integer number (4100617710).

Almost surely, 2^51502397452 is an apocalyptic number.

It is an amenable number.

51502397452 is a deficient number, since it is larger than the sum of its proper divisors (46912427588).

51502397452 is a wasteful number, since it uses less digits than its factorization.

51502397452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096041 (or 1096039 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 43.

The spelling of 51502397452 in words is "fifty-one billion, five hundred two million, three hundred ninety-seven thousand, four hundred fifty-two".