25520014 has 12 divisors (see below), whose sum is σ = 41451696. Its totient is φ = 11778312.

The previous prime is 25520003. The next prime is 25520017. The reversal of 25520014 is 41002552.

It is a super-2 number, since 2×25520014² = 1302542229120392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25519973 and 25520000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25520017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37414 + ... + 38089.

It is an arithmetic number, because the mean of its divisors is an integer number (3454308).

Almost surely, 2^25520014 is an apocalyptic number.

25520014 is a deficient number, since it is larger than the sum of its proper divisors (15931682).

25520014 is a wasteful number, since it uses less digits than its factorization.

25520014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75531 (or 75518 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 25520014 is about 5051.7337617891. The cubic root of 25520014 is about 294.4152507533.

Adding to 25520014 its reverse (41002552), we get a palindrome (66522566).

The spelling of 25520014 in words is "twenty-five million, five hundred twenty thousand, fourteen".