51023020052 has 48 divisors (see below), whose sum is σ = 95139858240. Its totient is φ = 23874020352.

The previous prime is 51023020049. The next prime is 51023020079. The reversal of 51023020052 is 25002032015.

It is a congruent number.

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, 4026158 + ... + 4038810.

It is an arithmetic number, because the mean of its divisors is an integer number (1982080380).

Almost surely, 2^51023020052 is an apocalyptic number.

It is an amenable number.

51023020052 is a deficient number, since it is larger than the sum of its proper divisors (44116838188).

51023020052 is a wasteful number, since it uses less digits than its factorization.

51023020052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13320 (or 13318 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

Adding to 51023020052 its reverse (25002032015), we get a palindrome (76025052067).

The spelling of 51023020052 in words is "fifty-one billion, twenty-three million, twenty thousand, fifty-two".