49999005 has 64 divisors (see below), whose sum is σ = 102535680. Its totient is φ = 22643712.

The previous prime is 49998983. The next prime is 49999031. The reversal of 49999005 is 50099994.

49999005 = T₄₀₀ + T₄₀₁ + ... + T₇₁₃.

It is a happy number.

It is not a de Polignac number, because 49999005 - 2⁸ = 49998749 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 148197 + ... + 148533.

It is an arithmetic number, because the mean of its divisors is an integer number (1602120).

Almost surely, 2^49999005 is an apocalyptic number.

49999005 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49999005 is an abundant number, since it is smaller than the sum of its proper divisors (52536675).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49999005 is a wasteful number, since it uses less digits than its factorization.

49999005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 45.

The square root of 49999005 is about 7070.9974543907. The cubic root of 49999005 is about 368.4007061069.

The spelling of 49999005 in words is "forty-nine million, nine hundred ninety-nine thousand, five".