1252595625858 has 48 divisors (see below), whose sum is σ = 2787611411520. Its totient is φ = 406202918688.

The previous prime is 1252595625857. The next prime is 1252595625877. The reversal of 1252595625858 is 8585265952521.

It is a happy number.

1252595625858 is a `hidden beast` number, since 1 + 2 + 525 + 9 + 5 + 6 + 2 + 58 + 58 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1252595625795 and 1252595625804.

It is not an unprimeable number, because it can be changed into a prime (1252595625857) 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 23 ways as a sum of consecutive naturals, for example, 6308491 + ... + 6504017.

It is an arithmetic number, because the mean of its divisors is an integer number (58075237740).

Almost surely, 2^{1252595625858} is an apocalyptic number.

1252595625858 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1252595625858 is an abundant number, since it is smaller than the sum of its proper divisors (1535015785662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1252595625858 is a wasteful number, since it uses less digits than its factorization.

1252595625858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205191 (or 205188 counting only the distinct ones).

The product of its digits is 86400000, while the sum is 63.

The spelling of 1252595625858 in words is "one trillion, two hundred fifty-two billion, five hundred ninety-five million, six hundred twenty-five thousand, eight hundred fifty-eight".