53603439807 has 4 divisors (see below), whose sum is σ = 71471253080. Its totient is φ = 35735626536.

The previous prime is 53603439767. The next prime is 53603439853. The reversal of 53603439807 is 70893430635.

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

It is not a de Polignac number, because 53603439807 - 2¹⁰ = 53603438783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53603439707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8933906632 + ... + 8933906637.

It is an arithmetic number, because the mean of its divisors is an integer number (17867813270).

Almost surely, 2^53603439807 is an apocalyptic number.

53603439807 is a deficient number, since it is larger than the sum of its proper divisors (17867813273).

53603439807 is a wasteful number, since it uses less digits than its factorization.

53603439807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17867813272.

The product of its (nonzero) digits is 1632960, while the sum is 48.

The spelling of 53603439807 in words is "fifty-three billion, six hundred three million, four hundred thirty-nine thousand, eight hundred seven".