2051745600 has 84 divisors (see below), whose sum is σ = 6731451104. Its totient is φ = 547130880.

The previous prime is 2051745581. The next prime is 2051745601. The reversal of 2051745600 is 65471502.

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 (2051745601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 208924 + ... + 218523.

Almost surely, 2^2051745600 is an apocalyptic number.

2051745600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2051745600 is an abundant number, since it is smaller than the sum of its proper divisors (4679705504).

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

2051745600 is a wasteful number, since it uses less digits than its factorization.

2051745600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427472 (or 427457 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 2051745600 is about 45296.1985159903. The cubic root of 2051745600 is about 1270.6945588021.

The spelling of 2051745600 in words is "two billion, fifty-one million, seven hundred forty-five thousand, six hundred".