45001225 has 24 divisors (see below), whose sum is σ = 59228352. Its totient is φ = 33844800.

The previous prime is 45001223. The next prime is 45001241. The reversal of 45001225 is 52210054.

It is not a de Polignac number, because 45001225 - 2¹ = 45001223 is a prime.

It is a super-2 number, since 2×45001225² = 4050220503001250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45001223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34434 + ... + 35716.

It is an arithmetic number, because the mean of its divisors is an integer number (2467848).

Almost surely, 2^45001225 is an apocalyptic number.

It is an amenable number.

45001225 is a deficient number, since it is larger than the sum of its proper divisors (14227127).

45001225 is a wasteful number, since it uses less digits than its factorization.

45001225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377 (or 1372 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 45001225 is about 6708.2952379871. The cubic root of 45001225 is about 355.6925579711.

Adding to 45001225 its reverse (52210054), we get a palindrome (97211279).

The spelling of 45001225 in words is "forty-five million, one thousand, two hundred twenty-five".