45215425 has 6 divisors (see below), whose sum is σ = 56067158. Its totient is φ = 36172320.

The previous prime is 45215411. The next prime is 45215441. The reversal of 45215425 is 52451254.

It can be written as a sum of positive squares in 3 ways, for example, as 3249 + 45212176 = 57^2 + 6724^2 .

It is not a de Polignac number, because 45215425 - 2⁷ = 45215297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45215393 and 45215402.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 904284 + ... + 904333.

Almost surely, 2^45215425 is an apocalyptic number.

It is an amenable number.

45215425 is a deficient number, since it is larger than the sum of its proper divisors (10851733).

45215425 is a wasteful number, since it uses less digits than its factorization.

45215425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808627 (or 1808622 counting only the distinct ones).

The product of its digits is 8000, while the sum is 28.

The square root of 45215425 is about 6724.2415929233. The cubic root of 45215425 is about 356.2560150826.

Adding to 45215425 its reverse (52451254), we get a palindrome (97666679).

The spelling of 45215425 in words is "forty-five million, two hundred fifteen thousand, four hundred twenty-five".