25311310140 has 48 divisors (see below), whose sum is σ = 70882832160. Its totient is φ = 6748619520.

The previous prime is 25311310133. The next prime is 25311310147. The reversal of 25311310140 is 4101311352.

It is an interprime number because it is at equal distance from previous prime (25311310133) and next prime (25311310147).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25311310147) 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, 396870 + ... + 456210.

It is an arithmetic number, because the mean of its divisors is an integer number (1476725670).

Almost surely, 2^25311310140 is an apocalyptic number.

25311310140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25311310140 is an abundant number, since it is smaller than the sum of its proper divisors (45571522020).

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

25311310140 is a wasteful number, since it uses less digits than its factorization.

25311310140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66462 (or 66460 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 25311310140 its reverse (4101311352), we get a palindrome (29412621492).

The spelling of 25311310140 in words is "twenty-five billion, three hundred eleven million, three hundred ten thousand, one hundred forty".