49999656 has 32 divisors (see below), whose sum is σ = 142856640. Its totient is φ = 14285568.

The previous prime is 49999643. The next prime is 49999667. The reversal of 49999656 is 65699994.

It is a junction number, because it is equal to n+sod(n) for n = 49999596 and 49999605.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148641 + ... + 148976.

It is an arithmetic number, because the mean of its divisors is an integer number (4464270).

Almost surely, 2^49999656 is an apocalyptic number.

It is an amenable number.

49999656 is an abundant number, since it is smaller than the sum of its proper divisors (92856984).

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

49999656 is a wasteful number, since it uses less digits than its factorization.

49999656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297633 (or 297629 counting only the distinct ones).

The product of its digits is 4723920, while the sum is 57.

The square root of 49999656 is about 7071.0434873504. The cubic root of 49999656 is about 368.4023049909.

The spelling of 49999656 in words is "forty-nine million, nine hundred ninety-nine thousand, six hundred fifty-six".