1252646525550 has 48 divisors (see below), whose sum is σ = 3550358155392. Its totient is φ = 286319205600.

The previous prime is 1252646525549. The next prime is 1252646525567. The reversal of 1252646525550 is 555256462521.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1252646525550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 596497296 + ... + 596499395.

It is an arithmetic number, because the mean of its divisors is an integer number (73965794904).

Almost surely, 2^{1252646525550} is an apocalyptic number.

1252646525550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1252646525550 is an abundant number, since it is smaller than the sum of its proper divisors (2297711629842).

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

1252646525550 is a wasteful number, since it uses less digits than its factorization.

1252646525550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192996713 (or 1192996708 counting only the distinct ones).

The product of its (nonzero) digits is 3600000, while the sum is 48.

The spelling of 1252646525550 in words is "one trillion, two hundred fifty-two billion, six hundred forty-six million, five hundred twenty-five thousand, five hundred fifty".