40251025 has 24 divisors (see below), whose sum is σ = 53121600. Its totient is φ = 30168000.

The previous prime is 40251017. The next prime is 40251031. The reversal of 40251025 is 52015204.

It is not a de Polignac number, because 40251025 - 2³ = 40251017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 40250993 and 40251011.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47556 + ... + 48394.

It is an arithmetic number, because the mean of its divisors is an integer number (2213400).

Almost surely, 2^40251025 is an apocalyptic number.

It is an amenable number.

40251025 is a deficient number, since it is larger than the sum of its proper divisors (12870575).

40251025 is a wasteful number, since it uses less digits than its factorization.

40251025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969 (or 964 counting only the distinct ones).

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

The square root of 40251025 is about 6344.3695510271. The cubic root of 40251025 is about 342.7091091672.

Adding to 40251025 its reverse (52015204), we get a palindrome (92266229).

It can be divided in two parts, 4025 and 1025, that added together give a triangular number (5050 = T₁₀₀).

The spelling of 40251025 in words is "forty million, two hundred fifty-one thousand, twenty-five".