25012821053 has 8 divisors (see below), whose sum is σ = 27406922400. Its totient is φ = 22638754480.

The previous prime is 25012821049. The next prime is 25012821079. The reversal of 25012821053 is 35012821052.

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

It is a cyclic number.

It is not a de Polignac number, because 25012821053 - 2² = 25012821049 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25012821083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5006078 + ... + 5011071.

It is an arithmetic number, because the mean of its divisors is an integer number (3425865300).

Almost surely, 2^25012821053 is an apocalyptic number.

It is an amenable number.

25012821053 is a deficient number, since it is larger than the sum of its proper divisors (2394101347).

25012821053 is a wasteful number, since it uses less digits than its factorization.

25012821053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10017387.

The product of its (nonzero) digits is 4800, while the sum is 29.

Subtracting 25012821053 from its reverse (35012821052), we obtain a palindrome (9999999999).

The spelling of 25012821053 in words is "twenty-five billion, twelve million, eight hundred twenty-one thousand, fifty-three".