53746175111621 has 2 divisors, whose sum is σ = 53746175111622. Its totient is φ = 53746175111620.

The previous prime is 53746175111567. The next prime is 53746175111693. The reversal of 53746175111621 is 12611157164735.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42150141074596 + 11596034037025 = 6492314^2 + 3405295^2 .

It is a cyclic number.

It is not a de Polignac number, because 53746175111621 - 2³⁰ = 53745101369797 is a prime.

It is a super-2 number, since 2×53746175111621² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53746175111621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53746175113621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26873087555810 + 26873087555811.

It is an arithmetic number, because the mean of its divisors is an integer number (26873087555811).

Almost surely, 2^{53746175111621} is an apocalyptic number.

It is an amenable number.

53746175111621 is a deficient number, since it is larger than the sum of its proper divisors (1).

53746175111621 is an equidigital number, since it uses as much as digits as its factorization.

53746175111621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1058400, while the sum is 50.

The spelling of 53746175111621 in words is "fifty-three trillion, seven hundred forty-six billion, one hundred seventy-five million, one hundred eleven thousand, six hundred twenty-one".