25263223601242 has 16 divisors (see below), whose sum is σ = 41345148700800. Its totient is φ = 11481803382240.

The previous prime is 25263223601233. The next prime is 25263223601249. The reversal of 25263223601242 is 24210632236252.

It is a junction number, because it is equal to n+sod(n) for n = 25263223601195 and 25263223601204.

It is not an unprimeable number, because it can be changed into a prime (25263223601249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73829067 + ... + 74170462.

It is an arithmetic number, because the mean of its divisors is an integer number (2584071793800).

Almost surely, 2^{25263223601242} is an apocalyptic number.

25263223601242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25263223601242 is a deficient number, since it is larger than the sum of its proper divisors (16081925099558).

25263223601242 is a wasteful number, since it uses less digits than its factorization.

25263223601242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148007301.

The product of its (nonzero) digits is 414720, while the sum is 40.

Adding to 25263223601242 its reverse (24210632236252), we get a palindrome (49473855837494).

The spelling of 25263223601242 in words is "twenty-five trillion, two hundred sixty-three billion, two hundred twenty-three million, six hundred one thousand, two hundred forty-two".