25607142 has 48 divisors (see below), whose sum is σ = 63168768. Its totient is φ = 7421040.

The previous prime is 25607107. The next prime is 25607143. The reversal of 25607142 is 24170652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25607143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1743 + ... + 7365.

It is an arithmetic number, because the mean of its divisors is an integer number (1316016).

Almost surely, 2^25607142 is an apocalyptic number.

25607142 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 25607142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31584384).

25607142 is an abundant number, since it is smaller than the sum of its proper divisors (37561626).

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

25607142 is a wasteful number, since it uses less digits than its factorization.

25607142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5665 (or 5662 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 25607142 is about 5060.3499878961. The cubic root of 25607142 is about 294.7499250022.

Adding to 25607142 its reverse (24170652), we get a palindrome (49777794).

The spelling of 25607142 in words is "twenty-five million, six hundred seven thousand, one hundred forty-two".