25901213 has 8 divisors (see below), whose sum is σ = 28793856. Its totient is φ = 23137200.

The previous prime is 25901201. The next prime is 25901233. The reversal of 25901213 is 31210952.

25901213 = T₄₃₂ + T₄₃₃ + ... + T₆₁₇.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25901213 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25901233) 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 7 ways as a sum of consecutive naturals, for example, 31733 + ... + 32538.

It is an arithmetic number, because the mean of its divisors is an integer number (3599232).

Almost surely, 2^25901213 is an apocalyptic number.

It is an amenable number.

25901213 is a deficient number, since it is larger than the sum of its proper divisors (2892643).

25901213 is a wasteful number, since it uses less digits than its factorization.

25901213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64315.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 25901213 is about 5089.3234324417. The cubic root of 25901213 is about 295.8739305171.

The spelling of 25901213 in words is "twenty-five million, nine hundred one thousand, two hundred thirteen".