25062500 has 42 divisors (see below), whose sum is σ = 54960234. Its totient is φ = 10000000.

The previous prime is 25062497. The next prime is 25062509. The reversal of 25062500 is 526052.

It is a happy number.

It can be written as a sum of positive squares in 7 ways, for example, as 22733824 + 2328676 = 4768^2 + 1526^2 .

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

It is not an unprimeable number, because it can be changed into a prime (25062509) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 62300 + ... + 62700.

It is an arithmetic number, because the mean of its divisors is an integer number (1308577).

Almost surely, 2^25062500 is an apocalyptic number.

25062500 is a gapful number since it is divisible by the number (20) 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 25062500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27480117).

25062500 is an abundant number, since it is smaller than the sum of its proper divisors (29897734).

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

25062500 is an frugal number, since it uses more digits than its factorization.

25062500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 25062500 is about 5006.2460986252. The cubic root of 25062500 is about 292.6452391909.

Adding to 25062500 its reverse (526052), we get a palindrome (25588552).

It can be divided in two parts, 250 and 62500, that multiplied together give a cube (15625000 = 250³).

The spelling of 25062500 in words is "twenty-five million, sixty-two thousand, five hundred".