49531151 has 4 divisors (see below), whose sum is σ = 49590072. Its totient is φ = 49472232.

The previous prime is 49531147. The next prime is 49531187. The reversal of 49531151 is 15113594.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15113594 = 2 ⋅7556797.

It is a cyclic number.

It is not a de Polignac number, because 49531151 - 2² = 49531147 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 (49533151) 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, 28181 + ... + 29886.

It is an arithmetic number, because the mean of its divisors is an integer number (12397518).

Almost surely, 2^49531151 is an apocalyptic number.

49531151 is a deficient number, since it is larger than the sum of its proper divisors (58921).

49531151 is an equidigital number, since it uses as much as digits as its factorization.

49531151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58920.

The product of its digits is 2700, while the sum is 29.

The square root of 49531151 is about 7037.8370967223. The cubic root of 49531151 is about 367.2480287999.

The spelling of 49531151 in words is "forty-nine million, five hundred thirty-one thousand, one hundred fifty-one".