25235145744 has 40 divisors (see below), whose sum is σ = 66083826912. Its totient is φ = 8296485120.

The previous prime is 25235145743. The next prime is 25235145781. The reversal of 25235145744 is 44754153252.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25235145696 and 25235145705.

It is not an unprimeable number, because it can be changed into a prime (25235145743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3597402 + ... + 3604409.

Almost surely, 2^25235145744 is an apocalyptic number.

25235145744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25235145744 is an abundant number, since it is smaller than the sum of its proper divisors (40848681168).

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

25235145744 is a wasteful number, since it uses less digits than its factorization.

25235145744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7201895 (or 7201889 counting only the distinct ones).

The product of its digits is 672000, while the sum is 42.

Adding to 25235145744 its reverse (44754153252), we get a palindrome (69989298996).

The spelling of 25235145744 in words is "twenty-five billion, two hundred thirty-five million, one hundred forty-five thousand, seven hundred forty-four".