49999057 has 8 divisors (see below), whose sum is σ = 53003592. Its totient is φ = 47001600.

The previous prime is 49999031. The next prime is 49999069. The reversal of 49999057 is 75099994.

It can be written as a sum of positive squares in 4 ways, for example, as 8473921 + 41525136 = 2911^2 + 6444^2 .

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

It is not a de Polignac number, because 49999057 - 2¹⁹ = 49474769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49998995 and 49999013.

It is not an unprimeable number, because it can be changed into a prime (49999757) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22057 + ... + 24217.

It is an arithmetic number, because the mean of its divisors is an integer number (6625449).

Almost surely, 2^49999057 is an apocalyptic number.

It is an amenable number.

49999057 is a deficient number, since it is larger than the sum of its proper divisors (3004535).

49999057 is a wasteful number, since it uses less digits than its factorization.

49999057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3539.

The product of its (nonzero) digits is 918540, while the sum is 52.

The square root of 49999057 is about 7071.0011313816. The cubic root of 49999057 is about 368.4008338217.

The spelling of 49999057 in words is "forty-nine million, nine hundred ninety-nine thousand, fifty-seven".