49124945 has 4 divisors (see below), whose sum is σ = 58949940. Its totient is φ = 39299952.

The previous prime is 49124909. The next prime is 49124953. The reversal of 49124945 is 54942194.

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 16589329 + 32535616 = 4073^2 + 5704^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49124945 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49124899 and 49124908.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4912490 + ... + 4912499.

It is an arithmetic number, because the mean of its divisors is an integer number (14737485).

Almost surely, 2^49124945 is an apocalyptic number.

It is an amenable number.

49124945 is a deficient number, since it is larger than the sum of its proper divisors (9824995).

49124945 is an equidigital number, since it uses as much as digits as its factorization.

49124945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9824994.

The product of its digits is 51840, while the sum is 38.

The square root of 49124945 is about 7008.9189608669. The cubic root of 49124945 is about 366.2413355512.

The spelling of 49124945 in words is "forty-nine million, one hundred twenty-four thousand, nine hundred forty-five".