53028945591 has 16 divisors (see below), whose sum is σ = 70928732160. Its totient is φ = 35240997440.

The previous prime is 53028945577. The next prime is 53028945623. The reversal of 53028945591 is 19554982035.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 53028945591 - 2⁵ = 53028945559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53028945551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2262211 + ... + 2285531.

It is an arithmetic number, because the mean of its divisors is an integer number (4433045760).

Almost surely, 2^53028945591 is an apocalyptic number.

53028945591 is a deficient number, since it is larger than the sum of its proper divisors (17899786569).

53028945591 is a wasteful number, since it uses less digits than its factorization.

53028945591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25686.

The product of its (nonzero) digits is 1944000, while the sum is 51.

The spelling of 53028945591 in words is "fifty-three billion, twenty-eight million, nine hundred forty-five thousand, five hundred ninety-one".