20145371632025 has 12 divisors (see below), whose sum is σ = 26295011394000. Its totient is φ = 15268071131280.

The previous prime is 20145371631977. The next prime is 20145371632073. The reversal of 20145371632025 is 52023617354102.

It is an interprime number because it is at equal distance from previous prime (20145371631977) and next prime (20145371632073).

It is not a de Polignac number, because 20145371632025 - 2¹⁴ = 20145371615641 is a prime.

It is a super-2 number, since 2×20145371632025² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21205653875 + ... + 21205654824.

It is an arithmetic number, because the mean of its divisors is an integer number (2191250949500).

Almost surely, 2^{20145371632025} is an apocalyptic number.

20145371632025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20145371632025 is a deficient number, since it is larger than the sum of its proper divisors (6149639761975).

20145371632025 is a wasteful number, since it uses less digits than its factorization.

20145371632025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42411308728 (or 42411308723 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 41.

Adding to 20145371632025 its reverse (52023617354102), we get a palindrome (72168988986127).

The spelling of 20145371632025 in words is "twenty trillion, one hundred forty-five billion, three hundred seventy-one million, six hundred thirty-two thousand, twenty-five".