49518407 has 4 divisors (see below), whose sum is σ = 49581336. Its totient is φ = 49455480.

The previous prime is 49518323. The next prime is 49518419. The reversal of 49518407 is 70481594.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70481594 = 2 ⋅35240797.

It is a cyclic number.

It is not a de Polignac number, because 49518407 - 2¹⁰ = 49517383 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 (49518437) 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, 30269 + ... + 31862.

It is an arithmetic number, because the mean of its divisors is an integer number (12395334).

Almost surely, 2^49518407 is an apocalyptic number.

49518407 is a deficient number, since it is larger than the sum of its proper divisors (62929).

49518407 is an equidigital number, since it uses as much as digits as its factorization.

49518407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62928.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 49518407 is about 7036.9316466767. The cubic root of 49518407 is about 367.2165293615.

The spelling of 49518407 in words is "forty-nine million, five hundred eighteen thousand, four hundred seven".