25061452061620 has 96 divisors (see below), whose sum is σ = 57651244834176. Its totient is φ = 9094705574400.

The previous prime is 25061452061593. The next prime is 25061452061641. The reversal of 25061452061620 is 2616025416052.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19863267 + ... + 21087253.

It is an arithmetic number, because the mean of its divisors is an integer number (600533800356).

Almost surely, 2^{25061452061620} is an apocalyptic number.

25061452061620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25061452061620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28825622417088).

25061452061620 is an abundant number, since it is smaller than the sum of its proper divisors (32589792772556).

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

25061452061620 is a wasteful number, since it uses less digits than its factorization.

25061452061620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225361 (or 1225359 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

Adding to 25061452061620 its reverse (2616025416052), we get a palindrome (27677477477672).

The spelling of 25061452061620 in words is "twenty-five trillion, sixty-one billion, four hundred fifty-two million, sixty-one thousand, six hundred twenty".