25424111040 has 56 divisors (see below), whose sum is σ = 80721555600. Its totient is φ = 6779762688.

The previous prime is 25424111023. The next prime is 25424111057. The reversal of 25424111040 is 4011142452.

It is an interprime number because it is at equal distance from previous prime (25424111023) and next prime (25424111057).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 25424111040.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13240765 + ... + 13242684.

It is an arithmetic number, because the mean of its divisors is an integer number (1441456350).

Almost surely, 2^25424111040 is an apocalyptic number.

25424111040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25424111040 is an abundant number, since it is smaller than the sum of its proper divisors (55297444560).

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

25424111040 is a wasteful number, since it uses less digits than its factorization.

25424111040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26483469 (or 26483459 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

Adding to 25424111040 its reverse (4011142452), we get a palindrome (29435253492).

The spelling of 25424111040 in words is "twenty-five billion, four hundred twenty-four million, one hundred eleven thousand, forty".