1235440235025 has 72 divisors (see below), whose sum is σ = 2235316647096. Its totient is φ = 652215244800.

The previous prime is 1235440235023. The next prime is 1235440235033. The reversal of 1235440235025 is 5205320445321.

1235440235025 is a `hidden beast` number, since 1 + 23 + 544 + 0 + 23 + 50 + 25 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 646956400896 + 588483834129 = 804336^2 + 767127^2 .

It is not a de Polignac number, because 1235440235025 - 2¹ = 1235440235023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1235440235023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 19622095 + ... + 19684955.

It is an arithmetic number, because the mean of its divisors is an integer number (31046064543).

Almost surely, 2^{1235440235025} is an apocalyptic number.

1235440235025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1235440235025 is a deficient number, since it is larger than the sum of its proper divisors (999876412071).

1235440235025 is a wasteful number, since it uses less digits than its factorization.

1235440235025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63763 (or 63755 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The spelling of 1235440235025 in words is "one trillion, two hundred thirty-five billion, four hundred forty million, two hundred thirty-five thousand, twenty-five".