25953389 has 24 divisors (see below), whose sum is σ = 33242400. Its totient is φ = 20035680.

The previous prime is 25953383. The next prime is 25953413. The reversal of 25953389 is 98335952.

25953389 = T₁ + T₂ + ... + T₅₃₇.

25953389 is a nontrivial binomial coefficient, being equal to C(539, 3).

It is not a de Polignac number, because 25953389 - 2¹⁶ = 25887853 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 (25953383) by changing a digit.

It is the 537-th tetrahedral number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96347 + ... + 96615.

It is an arithmetic number, because the mean of its divisors is an integer number (1385100).

Almost surely, 2^25953389 is an apocalyptic number.

It is an amenable number.

25953389 is a deficient number, since it is larger than the sum of its proper divisors (7289011).

25953389 is a wasteful number, since it uses less digits than its factorization.

25953389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473 (or 466 counting only the distinct ones).

The product of its digits is 291600, while the sum is 44.

The square root of 25953389 is about 5094.4468787102. The cubic root of 25953389 is about 296.0724690165.

The spelling of 25953389 in words is "twenty-five million, nine hundred fifty-three thousand, three hundred eighty-nine".