25153514321 has 8 divisors (see below), whose sum is σ = 27097908264. Its totient is φ = 23210478720.

The previous prime is 25153514299. The next prime is 25153514341. The reversal of 25153514321 is 12341535152.

It can be written as a sum of positive squares in 4 ways, for example, as 649995025 + 24503519296 = 25495^2 + 156536^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25153514321 - 2⁶ = 25153514257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25153514341) by changing a digit.

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, 300956 + ... + 375341.

It is an arithmetic number, because the mean of its divisors is an integer number (3387238533).

Almost surely, 2^25153514321 is an apocalyptic number.

It is an amenable number.

25153514321 is a deficient number, since it is larger than the sum of its proper divisors (1944393943).

25153514321 is a wasteful number, since it uses less digits than its factorization.

25153514321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679171.

The product of its digits is 18000, while the sum is 32.

The spelling of 25153514321 in words is "twenty-five billion, one hundred fifty-three million, five hundred fourteen thousand, three hundred twenty-one".