52621755479 has 2 divisors, whose sum is σ = 52621755480. Its totient is φ = 52621755478.

The previous prime is 52621755427. The next prime is 52621755547. The reversal of 52621755479 is 97455712625.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52621755479 - 2¹⁶ = 52621689943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52621755479.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52621752479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26310877739 + 26310877740.

It is an arithmetic number, because the mean of its divisors is an integer number (26310877740).

Almost surely, 2^52621755479 is an apocalyptic number.

52621755479 is a deficient number, since it is larger than the sum of its proper divisors (1).

52621755479 is an equidigital number, since it uses as much as digits as its factorization.

52621755479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5292000, while the sum is 53.

The spelling of 52621755479 in words is "fifty-two billion, six hundred twenty-one million, seven hundred fifty-five thousand, four hundred seventy-nine".