545252353531 has 4 divisors (see below), whose sum is σ = 558551191464. Its totient is φ = 531953515600.

The previous prime is 545252353517. The next prime is 545252353577. The reversal of 545252353531 is 135353252545.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 545252353531 - 2²¹ = 545250256379 is a prime.

It is a super-2 number, since 2×545252353531² (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 (545252353831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6649418905 + ... + 6649418986.

It is an arithmetic number, because the mean of its divisors is an integer number (139637797866).

Almost surely, 2^545252353531 is an apocalyptic number.

545252353531 is a deficient number, since it is larger than the sum of its proper divisors (13298837933).

545252353531 is a wasteful number, since it uses less digits than its factorization.

545252353531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13298837932.

The product of its digits is 1350000, while the sum is 43.

The spelling of 545252353531 in words is "five hundred forty-five billion, two hundred fifty-two million, three hundred fifty-three thousand, five hundred thirty-one".