49261519 has 4 divisors (see below), whose sum is σ = 50096520. Its totient is φ = 48426520.

The previous prime is 49261489. The next prime is 49261571. The reversal of 49261519 is 91516294.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91516294 = 2 ⋅45758147.

It is a cyclic number.

It is not a de Polignac number, because 49261519 - 2⁷ = 49261391 is a prime.

It is a super-2 number, since 2×49261519² = 4853394508374722, 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 (49261819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417412 + ... + 417529.

It is an arithmetic number, because the mean of its divisors is an integer number (12524130).

Almost surely, 2^49261519 is an apocalyptic number.

49261519 is a deficient number, since it is larger than the sum of its proper divisors (835001).

49261519 is an equidigital number, since it uses as much as digits as its factorization.

49261519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835000.

The product of its digits is 19440, while the sum is 37.

The square root of 49261519 is about 7018.6550705958. The cubic root of 49261519 is about 366.5804216807.

The spelling of 49261519 in words is "forty-nine million, two hundred sixty-one thousand, five hundred nineteen".