49531697 has 4 divisors (see below), whose sum is σ = 49780800. Its totient is φ = 49282596.

The previous prime is 49531679. The next prime is 49531709. The reversal of 49531697 is 79613594.

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: 79613594 = 2 ⋅39806797.

It is a cyclic number.

It is not a de Polignac number, because 49531697 - 2⁶ = 49531633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49531667) 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, 124253 + ... + 124650.

It is an arithmetic number, because the mean of its divisors is an integer number (12445200).

Almost surely, 2^49531697 is an apocalyptic number.

It is an amenable number.

49531697 is a deficient number, since it is larger than the sum of its proper divisors (249103).

49531697 is a wasteful number, since it uses less digits than its factorization.

49531697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249102.

The product of its digits is 204120, while the sum is 44.

The square root of 49531697 is about 7037.8758869420. The cubic root of 49531697 is about 367.2493782315.

The spelling of 49531697 in words is "forty-nine million, five hundred thirty-one thousand, six hundred ninety-seven".