20315445130525 has 24 divisors (see below), whose sum is σ = 25230603522944. Its totient is φ = 16226907379200.

The previous prime is 20315445130517. The next prime is 20315445130531. The reversal of 20315445130525 is 52503154451302.

It is not a de Polignac number, because 20315445130525 - 2³ = 20315445130517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 247808092 + ... + 247890058.

Almost surely, 2^{20315445130525} is an apocalyptic number.

20315445130525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20315445130525 is a deficient number, since it is larger than the sum of its proper divisors (4915158392419).

20315445130525 is a wasteful number, since it uses less digits than its factorization.

20315445130525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97381 (or 97376 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 40.

Adding to 20315445130525 its reverse (52503154451302), we get a palindrome (72818599581827).

The spelling of 20315445130525 in words is "twenty trillion, three hundred fifteen billion, four hundred forty-five million, one hundred thirty thousand, five hundred twenty-five".