1250521405530 has 64 divisors (see below), whose sum is σ = 3046552000128. Its totient is φ = 328440625920.

The previous prime is 1250521405439. The next prime is 1250521405559. The reversal of 1250521405530 is 355041250521.

It is a junction number, because it is equal to n+sod(n) for n = 1250521405491 and 1250521405500.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 12857764 + ... + 12954656.

It is an arithmetic number, because the mean of its divisors is an integer number (47602375002).

Almost surely, 2^{1250521405530} is an apocalyptic number.

1250521405530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1250521405530 is an abundant number, since it is smaller than the sum of its proper divisors (1796030594598).

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

1250521405530 is a wasteful number, since it uses less digits than its factorization.

1250521405530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103391.

The product of its (nonzero) digits is 30000, while the sum is 33.

The spelling of 1250521405530 in words is "one trillion, two hundred fifty billion, five hundred twenty-one million, four hundred five thousand, five hundred thirty".