25230516 has 48 divisors (see below), whose sum is σ = 62689536. Its totient is φ = 7870464.

The previous prime is 25230511. The next prime is 25230547. The reversal of 25230516 is 61503252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25230511) 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, 68565 + ... + 68931.

It is an arithmetic number, because the mean of its divisors is an integer number (1306032).

Almost surely, 2^25230516 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 25230516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31344768).

25230516 is an abundant number, since it is smaller than the sum of its proper divisors (37459020).

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

25230516 is a wasteful number, since it uses less digits than its factorization.

25230516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728 (or 726 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 25230516 is about 5022.9987059525. The cubic root of 25230516 is about 293.2977361532.

Adding to 25230516 its reverse (61503252), we get a palindrome (86733768).

The spelling of 25230516 in words is "twenty-five million, two hundred thirty thousand, five hundred sixteen".