1525464013213 has 6 divisors (see below), whose sum is σ = 1774519362366. Its totient is φ = 1307540582712.

The previous prime is 1525464013123. The next prime is 1525464013243. The reversal of 1525464013213 is 3123104645251.

It can be written as a sum of positive squares in only one way, i.e., 1514014585209 + 11449428004 = 1230453^2 + 107002^2 .

It is not a de Polignac number, because 1525464013213 - 2²⁵ = 1525430458781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1525464013243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15565959270 + ... + 15565959367.

It is an arithmetic number, because the mean of its divisors is an integer number (295753227061).

Almost surely, 2^{1525464013213} is an apocalyptic number.

It is an amenable number.

1525464013213 is a deficient number, since it is larger than the sum of its proper divisors (249055349153).

1525464013213 is an equidigital number, since it uses as much as digits as its factorization.

1525464013213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31131918651 (or 31131918644 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 1525464013213 its reverse (3123104645251), we get a palindrome (4648568658464).

The spelling of 1525464013213 in words is "one trillion, five hundred twenty-five billion, four hundred sixty-four million, thirteen thousand, two hundred thirteen".