1995037506 has 128 divisors (see below), whose sum is σ = 5818521600. Its totient is φ = 490898880.

The previous prime is 1995037477. The next prime is 1995037511. The reversal of 1995037506 is 6057305991.

1995037506 is a `hidden beast` number, since 1 + 99 + 50 + 3 + 7 + 506 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 66376 + ... + 91628.

It is an arithmetic number, because the mean of its divisors is an integer number (45457200).

Almost surely, 2^1995037506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1995037506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2909260800).

1995037506 is an abundant number, since it is smaller than the sum of its proper divisors (3823484094).

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

1995037506 is a wasteful number, since it uses less digits than its factorization.

1995037506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25301 (or 25295 counting only the distinct ones).

The product of its (nonzero) digits is 255150, while the sum is 45.

The square root of 1995037506 is about 44665.8427212563. The cubic root of 1995037506 is about 1258.8781283950.

The spelling of 1995037506 in words is "one billion, nine hundred ninety-five million, thirty-seven thousand, five hundred six".