25313573 has 4 divisors (see below), whose sum is σ = 25326048. Its totient is φ = 25301100.

The previous prime is 25313569. The next prime is 25313579. The reversal of 25313573 is 37531352.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 25313573 - 2² = 25313569 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25313579) 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, 2411 + ... + 7512.

It is an arithmetic number, because the mean of its divisors is an integer number (6331512).

Almost surely, 2^25313573 is an apocalyptic number.

It is an amenable number.

25313573 is a deficient number, since it is larger than the sum of its proper divisors (12475).

25313573 is an equidigital number, since it uses as much as digits as its factorization.

25313573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12474.

The product of its digits is 9450, while the sum is 29.

The square root of 25313573 is about 5031.2595838418. The cubic root of 25313573 is about 293.6192218221.

The spelling of 25313573 in words is "twenty-five million, three hundred thirteen thousand, five hundred seventy-three".