49045519 has 4 divisors (see below), whose sum is σ = 49157680. Its totient is φ = 48933360.

The previous prime is 49045501. The next prime is 49045523. The reversal of 49045519 is 91554094.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49045519 - 2¹⁷ = 48914447 is a prime.

It is a super-2 number, since 2×49045519² = 4810925867958722, 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 (49045019) 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, 55422 + ... + 56299.

It is an arithmetic number, because the mean of its divisors is an integer number (12289420).

Almost surely, 2^49045519 is an apocalyptic number.

49045519 is a deficient number, since it is larger than the sum of its proper divisors (112161).

49045519 is a wasteful number, since it uses less digits than its factorization.

49045519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112160.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 49045519 is about 7003.2506023989. The cubic root of 49045519 is about 366.0438474546.

The spelling of 49045519 in words is "forty-nine million, forty-five thousand, five hundred nineteen".