40590025 has 12 divisors (see below), whose sum is σ = 57522112. Its totient is φ = 27833040.

The previous prime is 40590019. The next prime is 40590029. The reversal of 40590025 is 52009504.

It is not a de Polignac number, because 40590025 - 2¹¹ = 40587977 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40590029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115797 + ... + 116146.

Almost surely, 2^40590025 is an apocalyptic number.

It is an amenable number.

40590025 is a deficient number, since it is larger than the sum of its proper divisors (16932087).

40590025 is a wasteful number, since it uses less digits than its factorization.

40590025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231960 (or 231955 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 40590025 is about 6371.0301364850. The cubic root of 40590025 is about 343.6685360676.

Adding to 40590025 its reverse (52009504), we get a palindrome (92599529).

The spelling of 40590025 in words is "forty million, five hundred ninety thousand, twenty-five".