40903040025 has 81 divisors (see below), whose sum is σ = 74561337981. Its totient is φ = 21434734080.

The previous prime is 40903040023. The next prime is 40903040033. The reversal of 40903040025 is 52004030904.

The square root of 40903040025 is 202245.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1503965961 + 39399074064 = 38781^2 + 198492^2 .

It is not a de Polignac number, because 40903040025 - 2¹ = 40903040023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40903040023) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 294266406 + ... + 294266544.

Almost surely, 2^40903040025 is an apocalyptic number.

40903040025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40903040025 is the 202245-th square number.

40903040025 is the 101123-rd centered octagonal number.

It is an amenable number.

40903040025 is a deficient number, since it is larger than the sum of its proper divisors (33658297956).

40903040025 is an equidigital number, since it uses as much as digits as its factorization.

40903040025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 40903040025 its reverse (52004030904), we get a palindrome (92907070929).

The spelling of 40903040025 in words is "forty billion, nine hundred three million, forty thousand, twenty-five".