1600725500 has 48 divisors (see below), whose sum is σ = 3813814368. Its totient is φ = 582080000.

The previous prime is 1600725493. The next prime is 1600725551. The reversal of 1600725500 is 55270061.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1600725500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140021 + ... + 151020.

It is an arithmetic number, because the mean of its divisors is an integer number (79454466).

Almost surely, 2^1600725500 is an apocalyptic number.

1600725500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1600725500 is an abundant number, since it is smaller than the sum of its proper divisors (2213088868).

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

1600725500 is a wasteful number, since it uses less digits than its factorization.

1600725500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291071 (or 291059 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 1600725500 is about 40009.0677222052. The cubic root of 1600725500 is about 1169.7838498112.

Adding to 1600725500 its reverse (55270061), we get a palindrome (1655995561).

The spelling of 1600725500 in words is "one billion, six hundred million, seven hundred twenty-five thousand, five hundred".