49916556 has 36 divisors (see below), whose sum is σ = 133601832. Its totient is φ = 15659904.

The previous prime is 49916551. The next prime is 49916561. The reversal of 49916556 is 65561994.

It is a happy number.

49916556 is a `hidden beast` number, since 4 + 9 + 91 + 6 + 556 = 666.

It is an interprime number because it is at equal distance from previous prime (49916551) and next prime (49916561).

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×49916556² = 4983325125802272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49916551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40170 + ... + 41393.

It is an arithmetic number, because the mean of its divisors is an integer number (3711162).

Almost surely, 2^49916556 is an apocalyptic number.

It is an amenable number.

49916556 is an abundant number, since it is smaller than the sum of its proper divisors (83685276).

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

49916556 is a wasteful number, since it uses less digits than its factorization.

49916556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81590 (or 81585 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 49916556 is about 7065.1649662269. The cubic root of 49916556 is about 368.1980955351.

It can be divided in two parts, 4991655 and 6, that multiplied together give a triangular number (29949930 = T₇₇₃₉).

The spelling of 49916556 in words is "forty-nine million, nine hundred sixteen thousand, five hundred fifty-six".