32500000 has 96 divisors (see below), whose sum is σ = 86132592. Its totient is φ = 12000000.

The previous prime is 32499991. The next prime is 32500001. The reversal of 32500000 is 523.

It can be written as a sum of positive squares in 8 ways, for example, as 32216976 + 283024 = 5676^2 + 532^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 32500000.

It is not an unprimeable number, because it can be changed into a prime (32500001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2499994 + ... + 2500006.

Almost surely, 2^32500000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43066296).

32500000 is an abundant number, since it is smaller than the sum of its proper divisors (53632592).

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

32500000 is an frugal number, since it uses more digits than its factorization.

32500000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58 (or 20 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 10.

The square root of 32500000 is about 5700.8771254957. The cubic root of 32500000 is about 319.1252149430.

Adding to 32500000 its reverse (523), we get a palindrome (32500523).

It can be divided in two parts, 32 and 500000, that multiplied together give a square (16000000 = 4000²).

The spelling of 32500000 in words is "thirty-two million, five hundred thousand".