25011461140 has 24 divisors (see below), whose sum is σ = 55613720232. Its totient is φ = 9416079360.

The previous prime is 25011461131. The next prime is 25011461149. The reversal of 25011461140 is 4116411052.

It is an interprime number because it is at equal distance from previous prime (25011461131) and next prime (25011461149).

It can be written as a sum of positive squares in 4 ways, for example, as 2129453316 + 22882007824 = 46146^2 + 151268^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25011461149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36781221 + ... + 36781900.

It is an arithmetic number, because the mean of its divisors is an integer number (2317238343).

Almost surely, 2^25011461140 is an apocalyptic number.

25011461140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25011461140 is an abundant number, since it is smaller than the sum of its proper divisors (30602259092).

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

25011461140 is a wasteful number, since it uses less digits than its factorization.

25011461140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73563147 (or 73563145 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 25011461140 its reverse (4116411052), we get a palindrome (29127872192).

It can be divided in two parts, 2501 and 1461140, that added together give a palindrome (1463641).

The spelling of 25011461140 in words is "twenty-five billion, eleven million, four hundred sixty-one thousand, one hundred forty".