545225637 has 12 divisors (see below), whose sum is σ = 799064000. Its totient is φ = 330439560.

The previous prime is 545225633. The next prime is 545225677. The reversal of 545225637 is 736522545.

It is a happy number.

It is not a de Polignac number, because 545225637 - 2² = 545225633 is a prime.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 545225595 and 545225604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545225633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 750637 + ... + 751362.

Almost surely, 2^545225637 is an apocalyptic number.

It is an amenable number.

545225637 is a deficient number, since it is larger than the sum of its proper divisors (253838363).

545225637 is a wasteful number, since it uses less digits than its factorization.

545225637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502024 (or 1502013 counting only the distinct ones).

The product of its digits is 252000, while the sum is 39.

The square root of 545225637 is about 23350.0671733509. The cubic root of 545225637 is about 816.9436276409.

The spelling of 545225637 in words is "five hundred forty-five million, two hundred twenty-five thousand, six hundred thirty-seven".