49990007 has 4 divisors (see below), whose sum is σ = 52621080. Its totient is φ = 47358936.

The previous prime is 49989991. The next prime is 49990069. The reversal of 49990007 is 70009994.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49990007 - 2⁴ = 49989991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49990807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1315508 + ... + 1315545.

It is an arithmetic number, because the mean of its divisors is an integer number (13155270).

Almost surely, 2^49990007 is an apocalyptic number.

49990007 is a deficient number, since it is larger than the sum of its proper divisors (2631073).

49990007 is a wasteful number, since it uses less digits than its factorization.

49990007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2631072.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 49990007 is about 7070.3611647496. The cubic root of 49990007 is about 368.3786052110.

The spelling of 49990007 in words is "forty-nine million, nine hundred ninety thousand, seven".