40024412455225 has 45 divisors (see below), whose sum is σ = 54598180816285. Its totient is φ = 29105879950400.

The previous prime is 40024412455163. The next prime is 40024412455273. The reversal of 40024412455225 is 52255421442004.

The square root of 40024412455225 is 6326485.

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 4185080788009 + 35839331667216 = 2045747^2 + 5986596^2 .

It is not a de Polignac number, because 40024412455225 - 2⁴⁵ = 4840040366393 is a prime.

It is a super-2 number, since 2×40024412455225² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 3827518197 + ... + 3827528653.

Almost surely, 2^{40024412455225} is an apocalyptic number.

40024412455225 is the 6326485-th square number.

40024412455225 is the 3163243-rd centered octagonal number.

It is an amenable number.

40024412455225 is a deficient number, since it is larger than the sum of its proper divisors (14573768361060).

40024412455225 is an frugal number, since it uses more digits than its factorization.

40024412455225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20968 (or 10473 counting only the distinct ones).

The product of its (nonzero) digits is 512000, while the sum is 40.

Adding to 40024412455225 its reverse (52255421442004), we get a palindrome (92279833897229).

The spelling of 40024412455225 in words is "forty trillion, twenty-four billion, four hundred twelve million, four hundred fifty-five thousand, two hundred twenty-five".