53906722391 has 8 divisors (see below), whose sum is σ = 55453124880. Its totient is φ = 52365028608.

The previous prime is 53906722379. The next prime is 53906722439. The reversal of 53906722391 is 19322760935.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53906722391 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 (53906722591) 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, 1153946 + ... + 1199751.

It is an arithmetic number, because the mean of its divisors is an integer number (6931640610).

Almost surely, 2^53906722391 is an apocalyptic number.

53906722391 is a deficient number, since it is larger than the sum of its proper divisors (1546402489).

53906722391 is a wasteful number, since it uses less digits than its factorization.

53906722391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354353.

The product of its (nonzero) digits is 612360, while the sum is 47.

The spelling of 53906722391 in words is "fifty-three billion, nine hundred six million, seven hundred twenty-two thousand, three hundred ninety-one".