40653225 has 48 divisors (see below), whose sum is σ = 75292800. Its totient is φ = 21504960.

The previous prime is 40653199. The next prime is 40653253. The reversal of 40653225 is 52235604.

40653225 is a `hidden beast` number, since 4 + 0 + 653 + 2 + 2 + 5 = 666.

It is not a de Polignac number, because 40653225 - 2⁶ = 40653161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 154444 + ... + 154706.

It is an arithmetic number, because the mean of its divisors is an integer number (1568600).

Almost surely, 2^40653225 is an apocalyptic number.

40653225 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40653225 is a deficient number, since it is larger than the sum of its proper divisors (34639575).

40653225 is a wasteful number, since it uses less digits than its factorization.

40653225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 40653225 is about 6375.9881587092. The cubic root of 40653225 is about 343.8468112997.

Adding to 40653225 its reverse (52235604), we get a palindrome (92888829).

The spelling of 40653225 in words is "forty million, six hundred fifty-three thousand, two hundred twenty-five".