25253141121 has 32 divisors (see below), whose sum is σ = 40306533120. Its totient is φ = 15533983872.

The previous prime is 25253141087. The next prime is 25253141131. The reversal of 25253141121 is 12114135252.

It is a happy number.

25253141121 is a `hidden beast` number, since 2 + 5 + 2 + 531 + 4 + 1 + 121 = 666.

It is not a de Polignac number, because 25253141121 - 2⁶ = 25253141057 is a prime.

It is a super-2 number, since 2×25253141121² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (25253141131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 921205 + ... + 948221.

It is an arithmetic number, because the mean of its divisors is an integer number (1259579160).

Almost surely, 2^25253141121 is an apocalyptic number.

It is an amenable number.

25253141121 is a deficient number, since it is larger than the sum of its proper divisors (15053391999).

25253141121 is a wasteful number, since it uses less digits than its factorization.

25253141121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29702 (or 29696 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

Adding to 25253141121 its reverse (12114135252), we get a palindrome (37367276373).

The spelling of 25253141121 in words is "twenty-five billion, two hundred fifty-three million, one hundred forty-one thousand, one hundred twenty-one".