49255577790149 has 4 divisors (see below), whose sum is σ = 49265136417036. Its totient is φ = 49246019163264.

The previous prime is 49255577790109. The next prime is 49255577790157. The reversal of 49255577790149 is 94109777555294.

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 23866576227649 + 25389001562500 = 4885343^2 + 5038750^2 .

It is a cyclic number.

It is not a de Polignac number, because 49255577790149 - 2¹² = 49255577786053 is a prime.

It is a super-2 number, since 2×49255577790149² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49255577790109) 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, 4779305714 + ... + 4779316019.

It is an arithmetic number, because the mean of its divisors is an integer number (12316284104259).

Almost surely, 2^{49255577790149} is an apocalyptic number.

It is an amenable number.

49255577790149 is a deficient number, since it is larger than the sum of its proper divisors (9558626887).

49255577790149 is an equidigital number, since it uses as much as digits as its factorization.

49255577790149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9558626886.

The product of its (nonzero) digits is 1000188000, while the sum is 74.

The spelling of 49255577790149 in words is "forty-nine trillion, two hundred fifty-five billion, five hundred seventy-seven million, seven hundred ninety thousand, one hundred forty-nine".