49372121 has 4 divisors (see below), whose sum is σ = 49429044. Its totient is φ = 49315200.

The previous prime is 49372117. The next prime is 49372129. The reversal of 49372121 is 12127394.

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 22705225 + 26666896 = 4765^2 + 5164^2 .

It is a cyclic number.

It is not a de Polignac number, because 49372121 - 2² = 49372117 is a prime.

It is a super-3 number, since 3×49372121³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49372129) 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, 27140 + ... + 28901.

It is an arithmetic number, because the mean of its divisors is an integer number (12357261).

Almost surely, 2^49372121 is an apocalyptic number.

It is an amenable number.

49372121 is a deficient number, since it is larger than the sum of its proper divisors (56923).

49372121 is an equidigital number, since it uses as much as digits as its factorization.

49372121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56922.

The product of its digits is 3024, while the sum is 29.

The square root of 49372121 is about 7026.5297978447. The cubic root of 49372121 is about 366.8545654944.

The spelling of 49372121 in words is "forty-nine million, three hundred seventy-two thousand, one hundred twenty-one".