25048513 has 4 divisors (see below), whose sum is σ = 28626880. Its totient is φ = 21470148.

The previous prime is 25048511. The next prime is 25048523. The reversal of 25048513 is 31584052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 25048513 - 2¹ = 25048511 is a prime.

It is a super-2 number, since 2×25048513² = 1254856007022338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25048511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1789173 + ... + 1789186.

It is an arithmetic number, because the mean of its divisors is an integer number (7156720).

Almost surely, 2^25048513 is an apocalyptic number.

It is an amenable number.

25048513 is a deficient number, since it is larger than the sum of its proper divisors (3578367).

25048513 is an equidigital number, since it uses as much as digits as its factorization.

25048513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3578366.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 25048513 is about 5004.8489487696. The cubic root of 25048513 is about 292.5907887749.

The spelling of 25048513 in words is "twenty-five million, forty-eight thousand, five hundred thirteen".