1525320425323 has 4 divisors (see below), whose sum is σ = 1562523362568. Its totient is φ = 1488117488080.

The previous prime is 1525320425287. The next prime is 1525320425341. The reversal of 1525320425323 is 3235240235251.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1525320425323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1525320425023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18601468561 + ... + 18601468642.

It is an arithmetic number, because the mean of its divisors is an integer number (390630840642).

Almost surely, 2^{1525320425323} is an apocalyptic number.

1525320425323 is a deficient number, since it is larger than the sum of its proper divisors (37202937245).

1525320425323 is an equidigital number, since it uses as much as digits as its factorization.

1525320425323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37202937244.

The product of its (nonzero) digits is 216000, while the sum is 37.

The spelling of 1525320425323 in words is "one trillion, five hundred twenty-five billion, three hundred twenty million, four hundred twenty-five thousand, three hundred twenty-three".