45123625 has 8 divisors (see below), whose sum is σ = 56314440. Its totient is φ = 36098800.

The previous prime is 45123599. The next prime is 45123643. The reversal of 45123625 is 52632154.

It can be written as a sum of positive squares in 4 ways, for example, as 4214809 + 40908816 = 2053^2 + 6396^2 .

It is not a de Polignac number, because 45123625 - 2⁷ = 45123497 is a prime.

It is a super-2 number, since 2×45123625² = 4072283066281250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45123593 and 45123602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180370 + ... + 180619.

It is an arithmetic number, because the mean of its divisors is an integer number (7039305).

Almost surely, 2^45123625 is an apocalyptic number.

It is an amenable number.

45123625 is a deficient number, since it is larger than the sum of its proper divisors (11190815).

45123625 is an equidigital number, since it uses as much as digits as its factorization.

45123625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361004 (or 360994 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 45123625 is about 6717.4120760900. The cubic root of 45123625 is about 356.0147518400.

Adding to 45123625 its reverse (52632154), we get a palindrome (97755779).

The spelling of 45123625 in words is "forty-five million, one hundred twenty-three thousand, six hundred twenty-five".