250121049 has 4 divisors (see below), whose sum is σ = 333494736. Its totient is φ = 166747364.

The previous prime is 250121041. The next prime is 250121057. The reversal of 250121049 is 940121052.

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 an interprime number because it is at equal distance from previous prime (250121041) and next prime (250121057).

It is a cyclic number.

It is not a de Polignac number, because 250121049 - 2³ = 250121041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (250121041) 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, 41686839 + ... + 41686844.

It is an arithmetic number, because the mean of its divisors is an integer number (83373684).

Almost surely, 2^250121049 is an apocalyptic number.

It is an amenable number.

250121049 is a deficient number, since it is larger than the sum of its proper divisors (83373687).

250121049 is an equidigital number, since it uses as much as digits as its factorization.

250121049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83373686.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 250121049 is about 15815.2157430748. The cubic root of 250121049 is about 630.0621833305.

The spelling of 250121049 in words is "two hundred fifty million, one hundred twenty-one thousand, forty-nine".