1252525445553 has 16 divisors (see below), whose sum is σ = 1715589855936. Its totient is φ = 812250048960.

The previous prime is 1252525445543. The next prime is 1252525445569. The reversal of 1252525445553 is 3555445252521.

It is not a de Polignac number, because 1252525445553 - 2¹⁶ = 1252525380017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1252525445503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 925026 + ... + 1833227.

It is an arithmetic number, because the mean of its divisors is an integer number (107224365996).

Almost surely, 2^{1252525445553} is an apocalyptic number.

It is an amenable number.

1252525445553 is a deficient number, since it is larger than the sum of its proper divisors (463064410383).

1252525445553 is a wasteful number, since it uses less digits than its factorization.

1252525445553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2762384.

The product of its digits is 6000000, while the sum is 48.

The spelling of 1252525445553 in words is "one trillion, two hundred fifty-two billion, five hundred twenty-five million, four hundred forty-five thousand, five hundred fifty-three".