545252561131 has 16 divisors (see below), whose sum is σ = 553135673344. Its totient is φ = 537428201184.

The previous prime is 545252561089. The next prime is 545252561153. The reversal of 545252561131 is 131165252545.

It is a cyclic number.

It is not a de Polignac number, because 545252561131 - 2¹³ = 545252552939 is a prime.

It is a super-2 number, since 2×545252561131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545252561531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90315445 + ... + 90321481.

It is an arithmetic number, because the mean of its divisors is an integer number (34570979584).

Almost surely, 2^545252561131 is an apocalyptic number.

545252561131 is a deficient number, since it is larger than the sum of its proper divisors (7883112213).

545252561131 is a wasteful number, since it uses less digits than its factorization.

545252561131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10690.

The product of its digits is 180000, while the sum is 40.

The spelling of 545252561131 in words is "five hundred forty-five billion, two hundred fifty-two million, five hundred sixty-one thousand, one hundred thirty-one".