20415520411125 has 64 divisors (see below), whose sum is σ = 38827377658368. Its totient is φ = 9332114419200.

The previous prime is 20415520411123. The next prime is 20415520411159. The reversal of 20415520411125 is 52111402551402.

It is not a de Polignac number, because 20415520411125 - 2¹ = 20415520411123 is a prime.

It is a super-2 number, since 2×20415520411125² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20415520411123) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35829457 + ... + 36394793.

It is an arithmetic number, because the mean of its divisors is an integer number (606677775912).

Almost surely, 2^{20415520411125} is an apocalyptic number.

20415520411125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20415520411125 is a deficient number, since it is larger than the sum of its proper divisors (18411857247243).

20415520411125 is a wasteful number, since it uses less digits than its factorization.

20415520411125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579119 (or 579109 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 33.

Adding to 20415520411125 its reverse (52111402551402), we get a palindrome (72526922962527).

The spelling of 20415520411125 in words is "twenty trillion, four hundred fifteen billion, five hundred twenty million, four hundred eleven thousand, one hundred twenty-five".