45109625 has 32 divisors (see below), whose sum is σ = 62674560. Its totient is φ = 32136000.

The previous prime is 45109523. The next prime is 45109639. The reversal of 45109625 is 52690154.

It is a happy number.

It is not a de Polignac number, because 45109625 - 2¹⁴ = 45093241 is a prime.

It is a super-4 number, since 4×45109625⁴ (a number of 32 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45109591 and 45109600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72566 + ... + 73184.

It is an arithmetic number, because the mean of its divisors is an integer number (1958580).

Almost surely, 2^45109625 is an apocalyptic number.

It is an amenable number.

45109625 is a deficient number, since it is larger than the sum of its proper divisors (17564935).

45109625 is a wasteful number, since it uses less digits than its factorization.

45109625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698 (or 688 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 45109625 is about 6716.3699272747. The cubic root of 45109625 is about 355.9779291329.

Adding to 45109625 its reverse (52690154), we get a palindrome (97799779).

The spelling of 45109625 in words is "forty-five million, one hundred nine thousand, six hundred twenty-five".