54433021402565 has 64 divisors (see below), whose sum is σ = 75330582054336. Its totient is φ = 37402897416192.

The previous prime is 54433021402549. The next prime is 54433021402579. The reversal of 54433021402565 is 56520412033445.

It can be written as a sum of positive squares in 32 ways, for example, as 42928992288484 + 11504029114081 = 6552022^2 + 3391759^2 .

It is a cyclic number.

It is not a de Polignac number, because 54433021402565 - 2⁴ = 54433021402549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 49022369 + ... + 50120441.

It is an arithmetic number, because the mean of its divisors is an integer number (1177040344599).

Almost surely, 2^{54433021402565} is an apocalyptic number.

It is an amenable number.

54433021402565 is a deficient number, since it is larger than the sum of its proper divisors (20897560651771).

54433021402565 is a wasteful number, since it uses less digits than its factorization.

54433021402565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098618.

The product of its (nonzero) digits is 1728000, while the sum is 44.

The spelling of 54433021402565 in words is "fifty-four trillion, four hundred thirty-three billion, twenty-one million, four hundred two thousand, five hundred sixty-five".