49581151 has 4 divisors (see below), whose sum is σ = 49803712. Its totient is φ = 49358592.

The previous prime is 49581101. The next prime is 49581179. The reversal of 49581151 is 15118594.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15118594 = 2 ⋅7559297.

It is a cyclic number.

It is not a de Polignac number, because 49581151 - 2¹⁹ = 49056863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49581101) 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, 110946 + ... + 111391.

It is an arithmetic number, because the mean of its divisors is an integer number (12450928).

Almost surely, 2^49581151 is an apocalyptic number.

49581151 is a deficient number, since it is larger than the sum of its proper divisors (222561).

49581151 is a wasteful number, since it uses less digits than its factorization.

49581151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222560.

The product of its digits is 7200, while the sum is 34.

The square root of 49581151 is about 7041.3884284280. The cubic root of 49581151 is about 367.3715620095.

The spelling of 49581151 in words is "forty-nine million, five hundred eighty-one thousand, one hundred fifty-one".