49857645 has 8 divisors (see below), whose sum is σ = 79772256. Its totient is φ = 26590736.

The previous prime is 49857631. The next prime is 49857677. The reversal of 49857645 is 54675894.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49857645 - 2⁹ = 49857133 is a prime.

It is a super-3 number, since 3×49857645³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 49857594 and 49857603.

It is a congruent number.

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, 1661907 + ... + 1661936.

It is an arithmetic number, because the mean of its divisors is an integer number (9971532).

Almost surely, 2^49857645 is an apocalyptic number.

It is an amenable number.

49857645 is a deficient number, since it is larger than the sum of its proper divisors (29914611).

49857645 is a wasteful number, since it uses less digits than its factorization.

49857645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3323851.

The product of its digits is 1209600, while the sum is 48.

The square root of 49857645 is about 7060.9946183240. The cubic root of 49857645 is about 368.0531906613.

The spelling of 49857645 in words is "forty-nine million, eight hundred fifty-seven thousand, six hundred forty-five".