49691568 has 20 divisors (see below), whose sum is σ = 128370008. Its totient is φ = 16563840.

The previous prime is 49691557. The next prime is 49691573. The reversal of 49691568 is 86519694.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 1035241 = 49691568 / (4 + 9 + 6 + 9 + 1 + 5 + 6 + 8).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517573 + ... + 517668.

Almost surely, 2^49691568 is an apocalyptic number.

49691568 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

49691568 is an abundant number, since it is smaller than the sum of its proper divisors (78678440).

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

49691568 is a wasteful number, since it uses less digits than its factorization.

49691568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035252 (or 1035246 counting only the distinct ones).

The product of its digits is 466560, while the sum is 48.

The square root of 49691568 is about 7049.2246382138. The cubic root of 49691568 is about 367.6440714218.

The spelling of 49691568 in words is "forty-nine million, six hundred ninety-one thousand, five hundred sixty-eight".