49900509 has 8 divisors (see below), whose sum is σ = 73926720. Its totient is φ = 33266988.

The previous prime is 49900493. The next prime is 49900523. The reversal of 49900509 is 90500994.

It is not a de Polignac number, because 49900509 - 2⁴ = 49900493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49900549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 924057 + ... + 924110.

It is an arithmetic number, because the mean of its divisors is an integer number (9240840).

Almost surely, 2^49900509 is an apocalyptic number.

It is an amenable number.

49900509 is a deficient number, since it is larger than the sum of its proper divisors (24026211).

49900509 is a wasteful number, since it uses less digits than its factorization.

49900509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848176 (or 1848170 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 49900509 is about 7064.0292326688. The cubic root of 49900509 is about 368.1586356273.

The spelling of 49900509 in words is "forty-nine million, nine hundred thousand, five hundred nine".