45243025 has 12 divisors (see below), whose sum is σ = 56215152. Its totient is φ = 36121040.

The previous prime is 45243013. The next prime is 45243041. The reversal of 45243025 is 52034254.

It is not a de Polignac number, because 45243025 - 2²¹ = 43145873 is a prime.

It is a super-2 number, since 2×45243025² = 4093862622301250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13134 + ... + 16216.

It is an arithmetic number, because the mean of its divisors is an integer number (4684596).

Almost surely, 2^45243025 is an apocalyptic number.

It is an amenable number.

45243025 is a deficient number, since it is larger than the sum of its proper divisors (10972127).

45243025 is a wasteful number, since it uses less digits than its factorization.

45243025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3680 (or 3675 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 45243025 is about 6726.2935558895. The cubic root of 45243025 is about 356.3284878876.

Adding to 45243025 its reverse (52034254), we get a palindrome (97277279).

The spelling of 45243025 in words is "forty-five million, two hundred forty-three thousand, twenty-five".