1235440455255 has 12 divisors (see below), whose sum is σ = 2141430122520. Its totient is φ = 658901576112.

The previous prime is 1235440455199. The next prime is 1235440455289. The reversal of 1235440455255 is 5525540445321.

1235440455255 is a `hidden beast` number, since 1 + 2 + 3 + 5 + 4 + 40 + 4 + 552 + 55 = 666.

It is not a de Polignac number, because 1235440455255 - 2¹² = 1235440451159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 27454232339 = 1235440455255 / (1 + 2 + 3 + 5 + 4 + 4 + 0 + 4 + 5 + 5 + 2 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 1235440455255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13727116125 + ... + 13727116214.

It is an arithmetic number, because the mean of its divisors is an integer number (178452510210).

Almost surely, 2^{1235440455255} is an apocalyptic number.

1235440455255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1235440455255 is a deficient number, since it is larger than the sum of its proper divisors (905989667265).

1235440455255 is a wasteful number, since it uses less digits than its factorization.

1235440455255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27454232350 (or 27454232347 counting only the distinct ones).

The product of its (nonzero) digits is 2400000, while the sum is 45.

The spelling of 1235440455255 in words is "one trillion, two hundred thirty-five billion, four hundred forty million, four hundred fifty-five thousand, two hundred fifty-five".