49920000001 has 4 divisors (see below), whose sum is σ = 50024217600. Its totient is φ = 49815782404.

The previous prime is 49919999977. The next prime is 49920000007. The reversal of 49920000001 is 10000002994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10000002994 = 2 ⋅5000001497.

It is a cyclic number.

It is not a de Polignac number, because 49920000001 - 2¹³ = 49919991809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49920000007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52108081 + ... + 52109038.

It is an arithmetic number, because the mean of its divisors is an integer number (12506054400).

Almost surely, 2^49920000001 is an apocalyptic number.

It is an amenable number.

49920000001 is a deficient number, since it is larger than the sum of its proper divisors (104217599).

49920000001 is a wasteful number, since it uses less digits than its factorization.

49920000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104217598.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 49920000001 its reverse (10000002994), we get a palindrome (59920002995).

The spelling of 49920000001 in words is "forty-nine billion, nine hundred twenty million, one", and thus it is an aban number.