49745815 has 8 divisors (see below), whose sum is σ = 68222880. Its totient is φ = 34111392.

The previous prime is 49745789. The next prime is 49745831. The reversal of 49745815 is 51854794.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49745815 - 2⁵ = 49745783 is a prime.

It is a super-2 number, since 2×49745815² = 4949292220028450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 710620 + ... + 710689.

It is an arithmetic number, because the mean of its divisors is an integer number (8527860).

Almost surely, 2^49745815 is an apocalyptic number.

49745815 is a deficient number, since it is larger than the sum of its proper divisors (18477065).

49745815 is a wasteful number, since it uses less digits than its factorization.

49745815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421321.

The product of its digits is 201600, while the sum is 43.

The square root of 49745815 is about 7053.0713168094. The cubic root of 49745815 is about 367.7778052781. Note that the first 3 decimals are identical.

The spelling of 49745815 in words is "forty-nine million, seven hundred forty-five thousand, eight hundred fifteen".