1253025507855 has 64 divisors (see below), whose sum is σ = 2337395056128. Its totient is φ = 566446632960.

The previous prime is 1253025507823. The next prime is 1253025507859. The reversal of 1253025507855 is 5587055203521.

It is not a de Polignac number, because 1253025507855 - 2⁵ = 1253025507823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253025507859) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1787302 + ... + 2387571.

It is an arithmetic number, because the mean of its divisors is an integer number (36521797752).

Almost surely, 2^{1253025507855} is an apocalyptic number.

1253025507855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1253025507855 is a deficient number, since it is larger than the sum of its proper divisors (1084369548273).

1253025507855 is a wasteful number, since it uses less digits than its factorization.

1253025507855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4175016.

The product of its (nonzero) digits is 2100000, while the sum is 48.

The spelling of 1253025507855 in words is "one trillion, two hundred fifty-three billion, twenty-five million, five hundred seven thousand, eight hundred fifty-five".