545506825 has 6 divisors (see below), whose sum is σ = 676428494. Its totient is φ = 436405440.

The previous prime is 545506813. The next prime is 545506877. The reversal of 545506825 is 528605545.

It can be written as a sum of positive squares in 3 ways, for example, as 2663424 + 542843401 = 1632^2 + 23299^2 .

It is not a de Polignac number, because 545506825 - 2¹³ = 545498633 is a prime.

It is a super-2 number, since 2×545506825² = 595155392243161250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10910112 + ... + 10910161.

Almost surely, 2^545506825 is an apocalyptic number.

It is an amenable number.

545506825 is a deficient number, since it is larger than the sum of its proper divisors (130921669).

545506825 is a wasteful number, since it uses less digits than its factorization.

545506825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21820283 (or 21820278 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 40.

The square root of 545506825 is about 23356.0875362292. The cubic root of 545506825 is about 817.0840436757.

The spelling of 545506825 in words is "five hundred forty-five million, five hundred six thousand, eight hundred twenty-five".