40152025 has 6 divisors (see below), whose sum is σ = 49788542. Its totient is φ = 32121600.

The previous prime is 40152001. The next prime is 40152041. The reversal of 40152025 is 52025104.

It can be written as a sum of positive squares in 3 ways, for example, as 4439449 + 35712576 = 2107^2 + 5976^2 .

It is not a de Polignac number, because 40152025 - 2⁷ = 40151897 is a prime.

It is a super-2 number, since 2×40152025² = 3224370223201250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40151993 and 40152011.

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, 803016 + ... + 803065.

Almost surely, 2^40152025 is an apocalyptic number.

It is an amenable number.

40152025 is a deficient number, since it is larger than the sum of its proper divisors (9636517).

40152025 is a wasteful number, since it uses less digits than its factorization.

40152025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606091 (or 1606086 counting only the distinct ones).

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

The square root of 40152025 is about 6336.5625539404. The cubic root of 40152025 is about 342.4279067541.

Adding to 40152025 its reverse (52025104), we get a palindrome (92177129).

The spelling of 40152025 in words is "forty million, one hundred fifty-two thousand, twenty-five".