49550391001 has 4 divisors (see below), whose sum is σ = 50248283904. Its totient is φ = 48852498100.

The previous prime is 49550390983. The next prime is 49550391013. The reversal of 49550391001 is 10019305594.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 49550391001 - 2⁷ = 49550390873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49550391071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348946345 + ... + 348946486.

It is an arithmetic number, because the mean of its divisors is an integer number (12562070976).

Almost surely, 2^49550391001 is an apocalyptic number.

It is an amenable number.

49550391001 is a deficient number, since it is larger than the sum of its proper divisors (697892903).

49550391001 is an equidigital number, since it uses as much as digits as its factorization.

49550391001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697892902.

The product of its (nonzero) digits is 24300, while the sum is 37.

Adding to 49550391001 its reverse (10019305594), we get a palindrome (59569696595).

The spelling of 49550391001 in words is "forty-nine billion, five hundred fifty million, three hundred ninety-one thousand, one".