20312501552455 has 8 divisors (see below), whose sum is σ = 27857144986272. Its totient is φ = 13928572493088.

The previous prime is 20312501552351. The next prime is 20312501552459. The reversal of 20312501552455 is 55425510521302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20312501552455 - 2⁹ = 20312501551943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312501552459) 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 7 ways as a sum of consecutive naturals, for example, 290178593572 + ... + 290178593641.

It is an arithmetic number, because the mean of its divisors is an integer number (3482143123284).

Almost surely, 2^{20312501552455} is an apocalyptic number.

20312501552455 is a deficient number, since it is larger than the sum of its proper divisors (7544643433817).

20312501552455 is an equidigital number, since it uses as much as digits as its factorization.

20312501552455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580357187225.

The product of its (nonzero) digits is 300000, while the sum is 40.

The spelling of 20312501552455 in words is "twenty trillion, three hundred twelve billion, five hundred one million, five hundred fifty-two thousand, four hundred fifty-five".