545015520 has 384 divisors, whose sum is σ = 2220825600. Its totient is φ = 122259456.

The previous prime is 545015489. The next prime is 545015543. The reversal of 545015520 is 25510545.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2025946 + ... + 2026214.

It is an arithmetic number, because the mean of its divisors is an integer number (5783400).

Almost surely, 2^545015520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545015520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1110412800).

545015520 is an abundant number, since it is smaller than the sum of its proper divisors (1675810080).

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

545015520 is a wasteful number, since it uses less digits than its factorization.

545015520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367 (or 353 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 545015520 is about 23345.5674593701. The cubic root of 545015520 is about 816.8386706056.

The spelling of 545015520 in words is "five hundred forty-five million, fifteen thousand, five hundred twenty".