40550025 has 24 divisors (see below), whose sum is σ = 68683104. Its totient is φ = 21097600.

The previous prime is 40550023. The next prime is 40550057. The reversal of 40550025 is 52005504.

It is not a de Polignac number, because 40550025 - 2¹ = 40550023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40549983 and 40550010.

It is not an unprimeable number, because it can be changed into a prime (40550023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3519 + ... + 9668.

It is an arithmetic number, because the mean of its divisors is an integer number (2861796).

Almost surely, 2^40550025 is an apocalyptic number.

It is an amenable number.

40550025 is a deficient number, since it is larger than the sum of its proper divisors (28133079).

40550025 is a wasteful number, since it uses less digits than its factorization.

40550025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13241 (or 13236 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 40550025 is about 6367.8901529470. The cubic root of 40550025 is about 343.5556079976. Note that the first 3 decimals are identical.

Adding to 40550025 its reverse (52005504), we get a palindrome (92555529).

The spelling of 40550025 in words is "forty million, five hundred fifty thousand, twenty-five".