1525025000 has 48 divisors (see below), whose sum is σ = 3574107180. Its totient is φ = 610000000.

The previous prime is 1525024999. The next prime is 1525025003. The reversal of 1525025000 is 5205251.

It can be written as a sum of positive squares in 6 ways, for example, as 112317604 + 1412707396 = 10598^2 + 37586^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1525025003) 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, 5501 + ... + 55500.

Almost surely, 2^1525025000 is an apocalyptic number.

1525025000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1525025000 is an abundant number, since it is smaller than the sum of its proper divisors (2049082180).

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

1525025000 is an frugal number, since it uses more digits than its factorization.

1525025000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61032 (or 61008 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 1525025000 is about 39051.5684704213. The cubic root of 1525025000 is about 1151.0450487765.

The spelling of 1525025000 in words is "one billion, five hundred twenty-five million, twenty-five thousand".