49949557 has 8 divisors (see below), whose sum is σ = 57436736. Its totient is φ = 42550272.

The previous prime is 49949551. The next prime is 49949563. The reversal of 49949557 is 75594994.

It is an interprime number because it is at equal distance from previous prime (49949551) and next prime (49949563).

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

It is a 7-Lehmer number, since φ(49949557) divides (49949557-1)⁷.

It is a cyclic number.

It is not a de Polignac number, because 49949557 - 2¹⁹ = 49425269 is a prime.

It is the 7068-th Hogben number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49949551) by changing a digit.

It is a nontrivial repunit in base 7067.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20748 + ... + 23029.

It is an arithmetic number, because the mean of its divisors is an integer number (7179592).

Almost surely, 2^49949557 is an apocalyptic number.

It is an amenable number.

49949557 is a deficient number, since it is larger than the sum of its proper divisors (7487179).

49949557 is a wasteful number, since it uses less digits than its factorization.

49949557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43947.

The product of its digits is 2041200, while the sum is 52.

The square root of 49949557 is about 7067.5000530598. The cubic root of 49949557 is about 368.2792191112.

The spelling of 49949557 in words is "forty-nine million, nine hundred forty-nine thousand, five hundred fifty-seven".