545481544 has 16 divisors (see below), whose sum is σ = 1023806700. Its totient is φ = 272466432.

The previous prime is 545481527. The next prime is 545481551. The reversal of 545481544 is 445184545.

It can be written as a sum of positive squares in 2 ways, for example, as 534996900 + 10484644 = 23130^2 + 3238^2 .

It is a super-2 number, since 2×545481544² = 595100229689247872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 545481497 and 545481506.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25717 + ... + 41860.

Almost surely, 2^545481544 is an apocalyptic number.

It is an amenable number.

545481544 is a deficient number, since it is larger than the sum of its proper divisors (478325156).

545481544 is a wasteful number, since it uses less digits than its factorization.

545481544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68592 (or 68588 counting only the distinct ones).

The product of its digits is 256000, while the sum is 40.

The square root of 545481544 is about 23355.5463220195. The cubic root of 545481544 is about 817.0714211506.

The spelling of 545481544 in words is "five hundred forty-five million, four hundred eighty-one thousand, five hundred forty-four".