51201400052 has 24 divisors (see below), whose sum is σ = 98985452160. Its totient is φ = 22978762560.

The previous prime is 51201400031. The next prime is 51201400069. The reversal of 51201400052 is 25000410215.

It is a junction number, because it is equal to n+sod(n) for n = 51201399997 and 51201400033.

It is a congruent number.

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, 7361513 + ... + 7368464.

It is an arithmetic number, because the mean of its divisors is an integer number (4124393840).

Almost surely, 2^51201400052 is an apocalyptic number.

It is an amenable number.

51201400052 is a deficient number, since it is larger than the sum of its proper divisors (47784052108).

51201400052 is a wasteful number, since it uses less digits than its factorization.

51201400052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14730071 (or 14730069 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

Adding to 51201400052 its reverse (25000410215), we get a palindrome (76201810267).

The spelling of 51201400052 in words is "fifty-one billion, two hundred one million, four hundred thousand, fifty-two".