2050523640 has 128 divisors (see below), whose sum is σ = 7456492800. Its totient is φ = 497093760.

The previous prime is 2050523621. The next prime is 2050523687. The reversal of 2050523640 is 463250502.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74422 + ... + 98181.

It is an arithmetic number, because the mean of its divisors is an integer number (58253850).

Almost surely, 2^2050523640 is an apocalyptic number.

2050523640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2050523640 is an abundant number, since it is smaller than the sum of its proper divisors (5405969160).

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

2050523640 is a wasteful number, since it uses less digits than its factorization.

2050523640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172634 (or 172624 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 2050523640 is about 45282.7079578949. The cubic root of 2050523640 is about 1270.4422457992.

The spelling of 2050523640 in words is "two billion, fifty million, five hundred twenty-three thousand, six hundred forty".