1252240140555 has 64 divisors (see below), whose sum is σ = 2234774344320. Its totient is φ = 665292538368.

The previous prime is 1252240140527. The next prime is 1252240140583. The reversal of 1252240140555 is 5550410422521.

1252240140555 is a `hidden beast` number, since 1 + 2 + 5 + 2 + 240 + 1 + 405 + 5 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (1252240140527) and next prime (1252240140583).

It is not a de Polignac number, because 1252240140555 - 2³² = 1247945173259 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 115376509 + ... + 115387361.

It is an arithmetic number, because the mean of its divisors is an integer number (34918349130).

Almost surely, 2^{1252240140555} is an apocalyptic number.

1252240140555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1252240140555 is a deficient number, since it is larger than the sum of its proper divisors (982534203765).

1252240140555 is a wasteful number, since it uses less digits than its factorization.

1252240140555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14077 (or 14071 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 36.

The spelling of 1252240140555 in words is "one trillion, two hundred fifty-two billion, two hundred forty million, one hundred forty thousand, five hundred fifty-five".