25758942 has 64 divisors (see below), whose sum is σ = 59719680. Its totient is φ = 7330400.

The previous prime is 25758937. The next prime is 25758949. The reversal of 25758942 is 24985752.

It is a junction number, because it is equal to n+sod(n) for n = 25758894 and 25758903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25758949) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107659 + ... + 107897.

It is an arithmetic number, because the mean of its divisors is an integer number (933120).

Almost surely, 2^25758942 is an apocalyptic number.

25758942 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 25758942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29859840).

25758942 is an abundant number, since it is smaller than the sum of its proper divisors (33960738).

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

25758942 is a wasteful number, since it uses less digits than its factorization.

25758942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349.

The product of its digits is 201600, while the sum is 42.

The square root of 25758942 is about 5075.3267875084. The cubic root of 25758942 is about 295.3312070510.

The spelling of 25758942 in words is "twenty-five million, seven hundred fifty-eight thousand, nine hundred forty-two".