49289052157 has 4 divisors (see below), whose sum is σ = 49385887740. Its totient is φ = 49192216576.

The previous prime is 49289052133. The next prime is 49289052167. The reversal of 49289052157 is 75125098294.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41905774681 + 7383277476 = 204709^2 + 85926^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49289052157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49289052167) 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, 48417028 + ... + 48418045.

It is an arithmetic number, because the mean of its divisors is an integer number (12346471935).

Almost surely, 2^49289052157 is an apocalyptic number.

It is an amenable number.

49289052157 is a deficient number, since it is larger than the sum of its proper divisors (96835583).

49289052157 is an equidigital number, since it uses as much as digits as its factorization.

49289052157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96835582.

The product of its (nonzero) digits is 1814400, while the sum is 52.

The spelling of 49289052157 in words is "forty-nine billion, two hundred eighty-nine million, fifty-two thousand, one hundred fifty-seven".