55135450475 has 18 divisors (see below), whose sum is σ = 79530076044. Its totient is φ = 37807165200.

The previous prime is 55135450453. The next prime is 55135450519. The reversal of 55135450475 is 57405453155.

It is not a de Polignac number, because 55135450475 - 2¹⁶ = 55135384939 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 22503041 + ... + 22505490.

It is an arithmetic number, because the mean of its divisors is an integer number (4418337558).

Almost surely, 2^55135450475 is an apocalyptic number.

55135450475 is a deficient number, since it is larger than the sum of its proper divisors (24394625569).

55135450475 is a wasteful number, since it uses less digits than its factorization.

55135450475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45008555 (or 45008543 counting only the distinct ones).

The product of its (nonzero) digits is 1050000, while the sum is 44.

The spelling of 55135450475 in words is "fifty-five billion, one hundred thirty-five million, four hundred fifty thousand, four hundred seventy-five".