49995129 has 4 divisors (see below), whose sum is σ = 66660176. Its totient is φ = 33330084.

The previous prime is 49995119. The next prime is 49995131. The reversal of 49995129 is 92159994.

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 not a de Polignac number, because 49995129 - 2⁸ = 49994873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49995119) 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, 8332519 + ... + 8332524.

It is an arithmetic number, because the mean of its divisors is an integer number (16665044).

Almost surely, 2^49995129 is an apocalyptic number.

It is an amenable number.

49995129 is a deficient number, since it is larger than the sum of its proper divisors (16665047).

49995129 is a wasteful number, since it uses less digits than its factorization.

49995129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16665046.

The product of its digits is 262440, while the sum is 48.

The square root of 49995129 is about 7070.7233717633. The cubic root of 49995129 is about 368.3911861972.

The spelling of 49995129 in words is "forty-nine million, nine hundred ninety-five thousand, one hundred twenty-nine".