51332386553 has 16 divisors (see below), whose sum is σ = 58794456960. Its totient is φ = 43902642816.

The previous prime is 51332386531. The next prime is 51332386579. The reversal of 51332386553 is 35568323315.

It is a cyclic number.

It is not a de Polignac number, because 51332386553 - 2¹⁸ = 51332124409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51332386453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7482701 + ... + 7489557.

It is an arithmetic number, because the mean of its divisors is an integer number (3674653560).

Almost surely, 2^51332386553 is an apocalyptic number.

It is an amenable number.

51332386553 is a deficient number, since it is larger than the sum of its proper divisors (7462070407).

51332386553 is a wasteful number, since it uses less digits than its factorization.

51332386553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9056.

The product of its digits is 972000, while the sum is 44.

The spelling of 51332386553 in words is "fifty-one billion, three hundred thirty-two million, three hundred eighty-six thousand, five hundred fifty-three".