51652640553 has 8 divisors (see below), whose sum is σ = 69580189728. Its totient is φ = 34080092544.

The previous prime is 51652640527. The next prime is 51652640561. The reversal of 51652640553 is 35504625615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51652640553 - 2¹⁷ = 51652509481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51652640503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88749951 + ... + 88750532.

It is an arithmetic number, because the mean of its divisors is an integer number (8697523716).

Almost surely, 2^51652640553 is an apocalyptic number.

It is an amenable number.

51652640553 is a deficient number, since it is larger than the sum of its proper divisors (17927549175).

51652640553 is a wasteful number, since it uses less digits than its factorization.

51652640553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177500583.

The product of its (nonzero) digits is 540000, while the sum is 42.

The spelling of 51652640553 in words is "fifty-one billion, six hundred fifty-two million, six hundred forty thousand, five hundred fifty-three".