53661260562533 has 64 divisors (see below), whose sum is σ = 61126261604352. Its totient is φ = 46758997232640.

The previous prime is 53661260562529. The next prime is 53661260562577. The reversal of 53661260562533 is 33526506216635.

It is not a de Polignac number, because 53661260562533 - 2² = 53661260562529 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 (53661260562523) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8567977160 + ... + 8567983422.

It is an arithmetic number, because the mean of its divisors is an integer number (955097837568).

Almost surely, 2^{53661260562533} is an apocalyptic number.

It is an amenable number.

53661260562533 is a deficient number, since it is larger than the sum of its proper divisors (7465001041819).

53661260562533 is a wasteful number, since it uses less digits than its factorization.

53661260562533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7794.

The product of its (nonzero) digits is 17496000, while the sum is 53.

The spelling of 53661260562533 in words is "fifty-three trillion, six hundred sixty-one billion, two hundred sixty million, five hundred sixty-two thousand, five hundred thirty-three".