49321537 has 4 divisors (see below), whose sum is σ = 49397040. Its totient is φ = 49246036.

The previous prime is 49321487. The next prime is 49321541. The reversal of 49321537 is 73512394.

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: 73512394 = 2 ⋅36756197.

It is a cyclic number.

It is not a de Polignac number, because 49321537 - 2⁷ = 49321409 is a prime.

It is a super-2 number, since 2×49321537² = 4865228024084738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41321537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36763 + ... + 38080.

It is an arithmetic number, because the mean of its divisors is an integer number (12349260).

Almost surely, 2^49321537 is an apocalyptic number.

It is an amenable number.

49321537 is a deficient number, since it is larger than the sum of its proper divisors (75503).

49321537 is an equidigital number, since it uses as much as digits as its factorization.

49321537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75502.

The product of its digits is 22680, while the sum is 34.

The square root of 49321537 is about 7022.9293745559. The cubic root of 49321537 is about 366.7292362460.

The spelling of 49321537 in words is "forty-nine million, three hundred twenty-one thousand, five hundred thirty-seven".