20125532524997 has 2 divisors, whose sum is σ = 20125532524998. Its totient is φ = 20125532524996.

The previous prime is 20125532524961. The next prime is 20125532525057. The reversal of 20125532524997 is 79942523552102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17196622028161 + 2928910496836 = 4146881^2 + 1711406^2 .

It is a cyclic number.

It is not a de Polignac number, because 20125532524997 - 2¹⁸ = 20125532262853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20125532524907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10062766262498 + 10062766262499.

It is an arithmetic number, because the mean of its divisors is an integer number (10062766262499).

Almost surely, 2^{20125532524997} is an apocalyptic number.

It is an amenable number.

20125532524997 is a deficient number, since it is larger than the sum of its proper divisors (1).

20125532524997 is an equidigital number, since it uses as much as digits as its factorization.

20125532524997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608000, while the sum is 56.

The spelling of 20125532524997 in words is "twenty trillion, one hundred twenty-five billion, five hundred thirty-two million, five hundred twenty-four thousand, nine hundred ninety-seven".