45123425 has 6 divisors (see below), whose sum is σ = 55953078. Its totient is φ = 36098720.

The previous prime is 45123413. The next prime is 45123433. The reversal of 45123425 is 52432154.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 18769 + 45104656 = 137^2 + 6716^2 .

It is not a de Polignac number, because 45123425 - 2¹⁰ = 45122401 is a prime.

It is a super-2 number, since 2×45123425² = 4072246967461250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 45123394 and 45123403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 902444 + ... + 902493.

It is an arithmetic number, because the mean of its divisors is an integer number (9325513).

Almost surely, 2^45123425 is an apocalyptic number.

It is an amenable number.

45123425 is a deficient number, since it is larger than the sum of its proper divisors (10829653).

45123425 is a wasteful number, since it uses less digits than its factorization.

45123425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1804947 (or 1804942 counting only the distinct ones).

The product of its digits is 4800, while the sum is 26.

The square root of 45123425 is about 6717.3971893882. The cubic root of 45123425 is about 356.0142258550.

Adding to 45123425 its reverse (52432154), we get a palindrome (97555579).

The spelling of 45123425 in words is "forty-five million, one hundred twenty-three thousand, four hundred twenty-five".