25532010 has 192 divisors, whose sum is σ = 83865600. Its totient is φ = 5458752.

The previous prime is 25531999. The next prime is 25532027. The reversal of 25532010 is 1023552.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 323151 + ... + 323229.

It is an arithmetic number, because the mean of its divisors is an integer number (436800).

Almost surely, 2^25532010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25532010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41932800).

25532010 is an abundant number, since it is smaller than the sum of its proper divisors (58333590).

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

25532010 is a wasteful number, since it uses less digits than its factorization.

25532010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 25532010 is about 5052.9209374381. The cubic root of 25532010 is about 294.4613747105.

Adding to 25532010 its reverse (1023552), we get a palindrome (26555562).

The spelling of 25532010 in words is "twenty-five million, five hundred thirty-two thousand, ten".