49686556 has 6 divisors (see below), whose sum is σ = 86951480. Its totient is φ = 24843276.

The previous prime is 49686517. The next prime is 49686557. The reversal of 49686556 is 65568694.

It is a happy number.

It is a super-2 number, since 2×49686556² = 4937507694282272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49686557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6210816 + ... + 6210823.

Almost surely, 2^49686556 is an apocalyptic number.

It is an amenable number.

49686556 is a deficient number, since it is larger than the sum of its proper divisors (37264924).

49686556 is a wasteful number, since it uses less digits than its factorization.

49686556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12421643 (or 12421641 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 49.

The square root of 49686556 is about 7048.8691291582. The cubic root of 49686556 is about 367.6317105451.

The spelling of 49686556 in words is "forty-nine million, six hundred eighty-six thousand, five hundred fifty-six".