1354520055421 has 16 divisors (see below), whose sum is σ = 1462316874480. Its totient is φ = 1247238881280.

The previous prime is 1354520055403. The next prime is 1354520055431. The reversal of 1354520055421 is 1245500254531.

It can be written as a sum of positive squares in 8 ways, for example, as 28765856025 + 1325754199396 = 169605^2 + 1151414^2 .

It is a cyclic number.

It is not a de Polignac number, because 1354520055421 - 2¹⁹ = 1354519531133 is a prime.

It is a super-2 number, since 2×1354520055421² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1354520055401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44121645 + ... + 44152333.

It is an arithmetic number, because the mean of its divisors is an integer number (91394804655).

Almost surely, 2^{1354520055421} is an apocalyptic number.

It is an amenable number.

1354520055421 is a deficient number, since it is larger than the sum of its proper divisors (107796819059).

1354520055421 is a wasteful number, since it uses less digits than its factorization.

1354520055421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38976.

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 1354520055421 in words is "one trillion, three hundred fifty-four billion, five hundred twenty million, fifty-five thousand, four hundred twenty-one".