40235021645255 has 16 divisors (see below), whose sum is σ = 50431777481664. Its totient is φ = 30757657032960.

The previous prime is 40235021645179. The next prime is 40235021645263. The reversal of 40235021645255 is 55254612053204.

It is a happy number.

It is not a de Polignac number, because 40235021645255 - 2³⁸ = 39960143738311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175346606 + ... + 175575915.

It is an arithmetic number, because the mean of its divisors is an integer number (3151986092604).

Almost surely, 2^{40235021645255} is an apocalyptic number.

40235021645255 is a deficient number, since it is larger than the sum of its proper divisors (10196755836409).

40235021645255 is a wasteful number, since it uses less digits than its factorization.

40235021645255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350923546.

The product of its (nonzero) digits is 1440000, while the sum is 44.

Adding to 40235021645255 its reverse (55254612053204), we get a palindrome (95489633698459).

The spelling of 40235021645255 in words is "forty trillion, two hundred thirty-five billion, twenty-one million, six hundred forty-five thousand, two hundred fifty-five".