609625545 has 32 divisors (see below), whose sum is σ = 1036385280. Its totient is φ = 305127360.

The previous prime is 609625517. The next prime is 609625547. The reversal of 609625545 is 545526906.

It is not a de Polignac number, because 609625545 - 2⁷ = 609625417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 609625497 and 609625506.

It is not an unprimeable number, because it can be changed into a prime (609625547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20500 + ... + 40490.

It is an arithmetic number, because the mean of its divisors is an integer number (32387040).

Almost surely, 2^609625545 is an apocalyptic number.

It is an amenable number.

609625545 is a deficient number, since it is larger than the sum of its proper divisors (426759735).

609625545 is a wasteful number, since it uses less digits than its factorization.

609625545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20125.

The product of its (nonzero) digits is 324000, while the sum is 42.

The square root of 609625545 is about 24690.5962868457. The cubic root of 609625545 is about 847.9190364325.

The spelling of 609625545 in words is "six hundred nine million, six hundred twenty-five thousand, five hundred forty-five".