40571225 has 6 divisors (see below), whose sum is σ = 50308350. Its totient is φ = 32456960.

The previous prime is 40571221. The next prime is 40571233. The reversal of 40571225 is 52217504.

It can be written as a sum of positive squares in 3 ways, for example, as 868624 + 39702601 = 932^2 + 6301^2 .

It is not a de Polignac number, because 40571225 - 2² = 40571221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40571194 and 40571203.

It is not an unprimeable number, because it can be changed into a prime (40571221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 811400 + ... + 811449.

It is an arithmetic number, because the mean of its divisors is an integer number (8384725).

Almost surely, 2^40571225 is an apocalyptic number.

It is an amenable number.

40571225 is a deficient number, since it is larger than the sum of its proper divisors (9737125).

40571225 is a wasteful number, since it uses less digits than its factorization.

40571225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622859 (or 1622854 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 40571225 is about 6369.5545370143. The cubic root of 40571225 is about 343.6154691196.

Adding to 40571225 its reverse (52217504), we get a palindrome (92788729).

The spelling of 40571225 in words is "forty million, five hundred seventy-one thousand, two hundred twenty-five".