53445520767 has 16 divisors (see below), whose sum is σ = 75353564160. Its totient is φ = 33639979200.

The previous prime is 53445520747. The next prime is 53445520781. The reversal of 53445520767 is 76702554435.

It is not a de Polignac number, because 53445520767 - 2⁸ = 53445520511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53445520747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7004517 + ... + 7012142.

It is an arithmetic number, because the mean of its divisors is an integer number (4709597760).

Almost surely, 2^53445520767 is an apocalyptic number.

53445520767 is a deficient number, since it is larger than the sum of its proper divisors (21908043393).

53445520767 is a wasteful number, since it uses less digits than its factorization.

53445520767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14016734.

The product of its (nonzero) digits is 3528000, while the sum is 48.

The spelling of 53445520767 in words is "fifty-three billion, four hundred forty-five million, five hundred twenty thousand, seven hundred sixty-seven".