1050621555525 has 12 divisors (see below), whose sum is σ = 1737027638592. Its totient is φ = 560331496240.

The previous prime is 1050621555521. The next prime is 1050621555527. The reversal of 1050621555525 is 5255551260501.

It is not a de Polignac number, because 1050621555525 - 2² = 1050621555521 is a prime.

It is a super-2 number, since 2×1050621555525² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1050621555521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7004143629 + ... + 7004143778.

It is an arithmetic number, because the mean of its divisors is an integer number (144752303216).

Almost surely, 2^{1050621555525} is an apocalyptic number.

1050621555525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1050621555525 is a deficient number, since it is larger than the sum of its proper divisors (686406083067).

1050621555525 is a wasteful number, since it uses less digits than its factorization.

1050621555525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14008287420 (or 14008287415 counting only the distinct ones).

The product of its (nonzero) digits is 375000, while the sum is 42.

The spelling of 1050621555525 in words is "one trillion, fifty billion, six hundred twenty-one million, five hundred fifty-five thousand, five hundred twenty-five".