25958394 has 80 divisors (see below), whose sum is σ = 72553536. Its totient is φ = 6739200.

The previous prime is 25958357. The next prime is 25958399. The reversal of 25958394 is 49385952.

25958394 is a `hidden beast` number, since 259 + 5 + 8 + 394 = 666.

It is not an unprimeable number, because it can be changed into a prime (25958399) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11434 + ... + 13514.

Almost surely, 2^25958394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25958394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36276768).

25958394 is an abundant number, since it is smaller than the sum of its proper divisors (46595142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25958394 is a wasteful number, since it uses less digits than its factorization.

25958394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113 (or 2104 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 25958394 is about 5094.9380761693. The cubic root of 25958394 is about 296.0914998961.

It can be divided in two parts, 259 and 58394, that added together give a triangular number (58653 = T₃₄₂).

The spelling of 25958394 in words is "twenty-five million, nine hundred fifty-eight thousand, three hundred ninety-four".