25121253242344 has 16 divisors (see below), whose sum is σ = 53831256948000. Its totient is φ = 10766251389552.

The previous prime is 25121253242329. The next prime is 25121253242359. The reversal of 25121253242344 is 44324235212152.

It is an interprime number because it is at equal distance from previous prime (25121253242329) and next prime (25121253242359).

It is a super-2 number, since 2×25121253242344² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25121253242297 and 25121253242306.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224296903894 + ... + 224296904005.

It is an arithmetic number, because the mean of its divisors is an integer number (3364453559250).

Almost surely, 2^{25121253242344} is an apocalyptic number.

It is an amenable number.

25121253242344 is an abundant number, since it is smaller than the sum of its proper divisors (28710003705656).

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

25121253242344 is a wasteful number, since it uses less digits than its factorization.

25121253242344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448593807912 (or 448593807908 counting only the distinct ones).

The product of its digits is 460800, while the sum is 40.

Adding to 25121253242344 its reverse (44324235212152), we get a palindrome (69445488454496).

The spelling of 25121253242344 in words is "twenty-five trillion, one hundred twenty-one billion, two hundred fifty-three million, two hundred forty-two thousand, three hundred forty-four".