25061140 has 48 divisors (see below), whose sum is σ = 57245328. Its totient is φ = 9160704.

The previous prime is 25061137. The next prime is 25061143. The reversal of 25061140 is 4116052.

It is an interprime number because it is at equal distance from previous prime (25061137) and next prime (25061143).

It can be written as a sum of positive squares in 8 ways, for example, as 14485636 + 10575504 = 3806^2 + 3252^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25061143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28954 + ... + 29806.

It is an arithmetic number, because the mean of its divisors is an integer number (1192611).

Almost surely, 2^25061140 is an apocalyptic number.

25061140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25061140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28622664).

25061140 is an abundant number, since it is smaller than the sum of its proper divisors (32184188).

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

25061140 is a wasteful number, since it uses less digits than its factorization.

25061140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988 (or 986 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 25061140 is about 5006.1102664644. The cubic root of 25061140 is about 292.6399456950.

Adding to 25061140 its reverse (4116052), we get a palindrome (29177192).

The spelling of 25061140 in words is "twenty-five million, sixty-one thousand, one hundred forty".