25101402240 has 64 divisors (see below), whose sum is σ = 80010725760. Its totient is φ = 6693706752.

The previous prime is 25101402233. The next prime is 25101402281. The reversal of 25101402240 is 4220410152.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6534904 + ... + 6538743.

It is an arithmetic number, because the mean of its divisors is an integer number (1250167590).

Almost surely, 2^25101402240 is an apocalyptic number.

25101402240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25101402240 is an abundant number, since it is smaller than the sum of its proper divisors (54909323520).

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

25101402240 is a wasteful number, since it uses less digits than its factorization.

25101402240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13073669 (or 13073657 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 25101402240 its reverse (4220410152), we get a palindrome (29321812392).

The spelling of 25101402240 in words is "twenty-five billion, one hundred one million, four hundred two thousand, two hundred forty".