40051025 has 24 divisors (see below), whose sum is σ = 57496320. Its totient is φ = 27106560.

The previous prime is 40051021. The next prime is 40051061. The reversal of 40051025 is 52015004.

It is not a de Polignac number, because 40051025 - 2² = 40051021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40050994 and 40051012.

It is not an unprimeable number, because it can be changed into a prime (40051021) 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, 12377 + ... + 15273.

It is an arithmetic number, because the mean of its divisors is an integer number (2395680).

Almost surely, 2^40051025 is an apocalyptic number.

It is an amenable number.

40051025 is a deficient number, since it is larger than the sum of its proper divisors (17445295).

40051025 is a wasteful number, since it uses less digits than its factorization.

40051025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2993 (or 2988 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 40051025 is about 6328.5879151672. The cubic root of 40051025 is about 342.1405467501.

Adding to 40051025 its reverse (52015004), we get a palindrome (92066029).

The spelling of 40051025 in words is "forty million, fifty-one thousand, twenty-five".