20247450755 has 32 divisors (see below), whose sum is σ = 29773578240. Its totient is φ = 12901824000.

The previous prime is 20247450749. The next prime is 20247450799. The reversal of 20247450755 is 55705474202.

It is not a de Polignac number, because 20247450755 - 2¹⁶ = 20247385219 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168371 + ... + 262380.

It is an arithmetic number, because the mean of its divisors is an integer number (930424320).

Almost surely, 2^20247450755 is an apocalyptic number.

20247450755 is a deficient number, since it is larger than the sum of its proper divisors (9526127485).

20247450755 is a wasteful number, since it uses less digits than its factorization.

20247450755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430859.

The product of its (nonzero) digits is 392000, while the sum is 41.

The spelling of 20247450755 in words is "twenty billion, two hundred forty-seven million, four hundred fifty thousand, seven hundred fifty-five".