53640520001 has 4 divisors (see below), whose sum is σ = 53854227504. Its totient is φ = 53426812500.

The previous prime is 53640519949. The next prime is 53640520009. The reversal of 53640520001 is 10002504635.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53640520001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53640520009) 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, 106853375 + ... + 106853876.

It is an arithmetic number, because the mean of its divisors is an integer number (13463556876).

Almost surely, 2^53640520001 is an apocalyptic number.

It is an amenable number.

53640520001 is a deficient number, since it is larger than the sum of its proper divisors (213707503).

53640520001 is a wasteful number, since it uses less digits than its factorization.

53640520001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213707502.

The product of its (nonzero) digits is 3600, while the sum is 26.

The spelling of 53640520001 in words is "fifty-three billion, six hundred forty million, five hundred twenty thousand, one".