25248761 has 4 divisors (see below), whose sum is σ = 25321872. Its totient is φ = 25175652.

The previous prime is 25248737. The next prime is 25248767. The reversal of 25248761 is 16784252.

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 a cyclic number.

It is not a de Polignac number, because 25248761 - 2²² = 21054457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25248767) 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, 36035 + ... + 36728.

It is an arithmetic number, because the mean of its divisors is an integer number (6330468).

Almost surely, 2^25248761 is an apocalyptic number.

It is an amenable number.

25248761 is a deficient number, since it is larger than the sum of its proper divisors (73111).

25248761 is an equidigital number, since it uses as much as digits as its factorization.

25248761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73110.

The product of its digits is 26880, while the sum is 35.

The square root of 25248761 is about 5024.8145239402. The cubic root of 25248761 is about 293.3684168035.

The spelling of 25248761 in words is "twenty-five million, two hundred forty-eight thousand, seven hundred sixty-one".