49958121 has 16 divisors (see below), whose sum is σ = 70671744. Its totient is φ = 31282944.

The previous prime is 49958119. The next prime is 49958141. The reversal of 49958121 is 12185994.

It is not a de Polignac number, because 49958121 - 2¹ = 49958119 is a prime.

It is a super-4 number, since 4×49958121⁴ (a number of 32 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49958121.

It is not an unprimeable number, because it can be changed into a prime (49958101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48811 + ... + 49823.

It is an arithmetic number, because the mean of its divisors is an integer number (4416984).

Almost surely, 2^49958121 is an apocalyptic number.

It is an amenable number.

49958121 is a deficient number, since it is larger than the sum of its proper divisors (20713623).

49958121 is a wasteful number, since it uses less digits than its factorization.

49958121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000.

The product of its digits is 25920, while the sum is 39.

The square root of 49958121 is about 7068.1058990369. The cubic root of 49958121 is about 368.3002654306.

The spelling of 49958121 in words is "forty-nine million, nine hundred fifty-eight thousand, one hundred twenty-one".