545551545 has 48 divisors (see below), whose sum is σ = 1107718848. Its totient is φ = 226719360.

The previous prime is 545551543. The next prime is 545551561. The reversal of 545551545 is 545155545.

It is not a de Polignac number, because 545551545 - 2¹ = 545551543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (545551543) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25654 + ... + 41823.

It is an arithmetic number, because the mean of its divisors is an integer number (23077476).

Almost surely, 2^545551545 is an apocalyptic number.

545551545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

545551545 is an abundant number, since it is smaller than the sum of its proper divisors (562167303).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545551545 is a wasteful number, since it uses less digits than its factorization.

545551545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67510 (or 67503 counting only the distinct ones).

The product of its digits is 250000, while the sum is 39.

The square root of 545551545 is about 23357.0448687329. The cubic root of 545551545 is about 817.1063709246.

The spelling of 545551545 in words is "five hundred forty-five million, five hundred fifty-one thousand, five hundred forty-five".