2052511640 has 32 divisors (see below), whose sum is σ = 4676616000. Its totient is φ = 810610944.

The previous prime is 2052511639. The next prime is 2052511649. The reversal of 2052511640 is 461152502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2052511649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321605 + ... + 327924.

It is an arithmetic number, because the mean of its divisors is an integer number (146144250).

Almost surely, 2^2052511640 is an apocalyptic number.

2052511640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2052511640 is an abundant number, since it is smaller than the sum of its proper divisors (2624104360).

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

2052511640 is a wasteful number, since it uses less digits than its factorization.

2052511640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649619 (or 649615 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 2052511640 is about 45304.6536241036. The cubic root of 2052511640 is about 1270.8526813525.

The spelling of 2052511640 in words is "two billion, fifty-two million, five hundred eleven thousand, six hundred forty".