2051525550 has 24 divisors (see below), whose sum is σ = 5087783736. Its totient is φ = 547073440.

The previous prime is 2051525479. The next prime is 2051525557. The reversal of 2051525550 is 555251502.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051525557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6838269 + ... + 6838568.

It is an arithmetic number, because the mean of its divisors is an integer number (211990989).

Almost surely, 2^2051525550 is an apocalyptic number.

2051525550 is an abundant number, since it is smaller than the sum of its proper divisors (3036258186).

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

2051525550 is a wasteful number, since it uses less digits than its factorization.

2051525550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13676852 (or 13676847 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 30.

The square root of 2051525550 is about 45293.7694390741. The cubic root of 2051525550 is about 1270.6491297887.

The spelling of 2051525550 in words is "two billion, fifty-one million, five hundred twenty-five thousand, five hundred fifty".