55413534521 has 4 divisors (see below), whose sum is σ = 55580947344. Its totient is φ = 55246121700.

The previous prime is 55413534467. The next prime is 55413534529. The reversal of 55413534521 is 12543531455.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55413534521 - 2¹⁴ = 55413518137 is a prime.

It is a super-2 number, since 2×55413534521² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55413534529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83705915 + ... + 83706576.

It is an arithmetic number, because the mean of its divisors is an integer number (13895236836).

Almost surely, 2^55413534521 is an apocalyptic number.

It is an amenable number.

55413534521 is a deficient number, since it is larger than the sum of its proper divisors (167412823).

55413534521 is a wasteful number, since it uses less digits than its factorization.

55413534521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167412822.

The product of its digits is 180000, while the sum is 38.

The spelling of 55413534521 in words is "fifty-five billion, four hundred thirteen million, five hundred thirty-four thousand, five hundred twenty-one".