1372522500 has 90 divisors (see below), whose sum is σ = 4335473142. Its totient is φ = 366000000.

The previous prime is 1372522477. The next prime is 1372522531. The reversal of 1372522500 is 52252731.

1372522500 is a `hidden beast` number, since 137 + 2 + 5 + 22 + 500 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 433222596 + 939299904 = 20814^2 + 30648^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 8001 + ... + 53000.

Almost surely, 2^1372522500 is an apocalyptic number.

1372522500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1372522500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2167736571).

1372522500 is an abundant number, since it is smaller than the sum of its proper divisors (2962950642).

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

1372522500 is a wasteful number, since it uses less digits than its factorization.

1372522500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61031 (or 61011 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 1372522500 is about 37047.5707705647. The cubic root of 1372522500 is about 1111.3217757966.

The spelling of 1372522500 in words is "one billion, three hundred seventy-two million, five hundred twenty-two thousand, five hundred".