49659905 has 16 divisors (see below), whose sum is σ = 60587904. Its totient is φ = 39070080.

The previous prime is 49659899. The next prime is 49659943. The reversal of 49659905 is 50995694.

It is not a de Polignac number, because 49659905 - 2⁴ = 49659889 is a prime.

It is a super-2 number, since 2×49659905² = 4932212329218050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49659905.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108437 + ... + 108893.

It is an arithmetic number, because the mean of its divisors is an integer number (3786744).

It is a Proth number, since it is equal to 3031 ⋅ 2¹⁴ + 1 and 3031 < 2¹⁴.

Almost surely, 2^49659905 is an apocalyptic number.

It is an amenable number.

49659905 is a deficient number, since it is larger than the sum of its proper divisors (10927999).

49659905 is a wasteful number, since it uses less digits than its factorization.

49659905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776.

The product of its (nonzero) digits is 437400, while the sum is 47.

The square root of 49659905 is about 7046.9784305048. The cubic root of 49659905 is about 367.5659683819.

The spelling of 49659905 in words is "forty-nine million, six hundred fifty-nine thousand, nine hundred five".