49957669 has 4 divisors (see below), whose sum is σ = 52587040. Its totient is φ = 47328300.

The previous prime is 49957657. The next prime is 49957681. The reversal of 49957669 is 96675994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96675994 = 2 ⋅48337997.

It is an interprime number because it is at equal distance from previous prime (49957657) and next prime (49957681).

It is a cyclic number.

It is not a de Polignac number, because 49957669 - 2⁵ = 49957637 is a prime.

It is a super-2 number, since 2×49957669² = 4991537383827122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49957469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1314657 + ... + 1314694.

It is an arithmetic number, because the mean of its divisors is an integer number (13146760).

Almost surely, 2^49957669 is an apocalyptic number.

It is an amenable number.

49957669 is a deficient number, since it is larger than the sum of its proper divisors (2629371).

49957669 is a wasteful number, since it uses less digits than its factorization.

49957669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2629370.

The product of its digits is 3674160, while the sum is 55.

The square root of 49957669 is about 7068.0739243446. The cubic root of 49957669 is about 368.2991546855.

The spelling of 49957669 in words is "forty-nine million, nine hundred fifty-seven thousand, six hundred sixty-nine".