52515251603 has 4 divisors (see below), whose sum is σ = 53736536568. Its totient is φ = 51293966640.

The previous prime is 52515251549. The next prime is 52515251617. The reversal of 52515251603 is 30615251525.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52515251603 - 2⁶ = 52515251539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52515251203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610642418 + ... + 610642503.

It is an arithmetic number, because the mean of its divisors is an integer number (13434134142).

Almost surely, 2^52515251603 is an apocalyptic number.

52515251603 is a deficient number, since it is larger than the sum of its proper divisors (1221284965).

52515251603 is a wasteful number, since it uses less digits than its factorization.

52515251603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221284964.

The product of its (nonzero) digits is 45000, while the sum is 35.

The spelling of 52515251603 in words is "fifty-two billion, five hundred fifteen million, two hundred fifty-one thousand, six hundred three".