1525530530101 has 2 divisors, whose sum is σ = 1525530530102. Its totient is φ = 1525530530100.

The previous prime is 1525530530087. The next prime is 1525530530107. The reversal of 1525530530101 is 1010350355251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 930696255076 + 594834275025 = 964726^2 + 771255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1525530530101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1525530530107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 762765265050 + 762765265051.

It is an arithmetic number, because the mean of its divisors is an integer number (762765265051).

Almost surely, 2^{1525530530101} is an apocalyptic number.

It is an amenable number.

1525530530101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525530530101 is an equidigital number, since it uses as much as digits as its factorization.

1525530530101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11250, while the sum is 31.

Adding to 1525530530101 its reverse (1010350355251), we get a palindrome (2535880885352).

The spelling of 1525530530101 in words is "one trillion, five hundred twenty-five billion, five hundred thirty million, five hundred thirty thousand, one hundred one".