25211516 has 24 divisors (see below), whose sum is σ = 48607104. Its totient is φ = 11346480.

The previous prime is 25211513. The next prime is 25211521. The reversal of 25211516 is 61511252.

25211516 = T₁₂₃ + T₁₂₄ + ... + T₅₃₄.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25211491 and 25211500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25211513) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1751 + ... + 7313.

It is an arithmetic number, because the mean of its divisors is an integer number (2025296).

Almost surely, 2^25211516 is an apocalyptic number.

It is an amenable number.

25211516 is a deficient number, since it is larger than the sum of its proper divisors (23395588).

25211516 is a wasteful number, since it uses less digits than its factorization.

25211516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5681 (or 5679 counting only the distinct ones).

The product of its digits is 600, while the sum is 23.

The square root of 25211516 is about 5021.1070492472. The cubic root of 25211516 is about 293.2240944249.

Adding to 25211516 its reverse (61511252), we get a palindrome (86722768).

The spelling of 25211516 in words is "twenty-five million, two hundred eleven thousand, five hundred sixteen".