25323961 has 4 divisors (see below), whose sum is σ = 27271972. Its totient is φ = 23375952.

The previous prime is 25323959. The next prime is 25323973. The reversal of 25323961 is 16932352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16353936 + 8970025 = 4044^2 + 2995^2 .

It is a cyclic number.

It is not a de Polignac number, because 25323961 - 2¹ = 25323959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25323901) 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, 973986 + ... + 974011.

It is an arithmetic number, because the mean of its divisors is an integer number (6817993).

Almost surely, 2^25323961 is an apocalyptic number.

It is an amenable number.

25323961 is a deficient number, since it is larger than the sum of its proper divisors (1948011).

25323961 is a wasteful number, since it uses less digits than its factorization.

25323961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948010.

The product of its digits is 9720, while the sum is 31.

The square root of 25323961 is about 5032.2918238115. The cubic root of 25323961 is about 293.6593807696.

The spelling of 25323961 in words is "twenty-five million, three hundred twenty-three thousand, nine hundred sixty-one".