53531220623 has 2 divisors, whose sum is σ = 53531220624. Its totient is φ = 53531220622.

The previous prime is 53531220569. The next prime is 53531220629. The reversal of 53531220623 is 32602213535.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53531220623 - 2¹⁶ = 53531155087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53531220623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53531220629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26765610311 + 26765610312.

It is an arithmetic number, because the mean of its divisors is an integer number (26765610312).

Almost surely, 2^53531220623 is an apocalyptic number.

53531220623 is a deficient number, since it is larger than the sum of its proper divisors (1).

53531220623 is an equidigital number, since it uses as much as digits as its factorization.

53531220623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 32.

The spelling of 53531220623 in words is "fifty-three billion, five hundred thirty-one million, two hundred twenty thousand, six hundred twenty-three".