20361313356525 has 36 divisors (see below), whose sum is σ = 36687754145952. Its totient is φ = 10794340953120.

The previous prime is 20361313356511. The next prime is 20361313356539. The reversal of 20361313356525 is 52565331316302.

It is a happy number.

20361313356525 is a `hidden beast` number, since 2 + 0 + 3 + 6 + 1 + 31 + 33 + 565 + 25 = 666.

It is an interprime number because it is at equal distance from previous prime (20361313356511) and next prime (20361313356539).

It is not a de Polignac number, because 20361313356525 - 2¹¹ = 20361313354477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 270904719 + ... + 270979868.

It is an arithmetic number, because the mean of its divisors is an integer number (1019104281832).

Almost surely, 2^{20361313356525} is an apocalyptic number.

20361313356525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20361313356525 is a deficient number, since it is larger than the sum of its proper divisors (16326440789427).

20361313356525 is a wasteful number, since it uses less digits than its factorization.

20361313356525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541884770 (or 541884762 counting only the distinct ones).

The product of its (nonzero) digits is 1458000, while the sum is 45.

The spelling of 20361313356525 in words is "twenty trillion, three hundred sixty-one billion, three hundred thirteen million, three hundred fifty-six thousand, five hundred twenty-five".