49422493 has 4 divisors (see below), whose sum is σ = 49482940. Its totient is φ = 49362048.

The previous prime is 49422487. The next prime is 49422497. The reversal of 49422493 is 39422494.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39422494 = 2 ⋅19711247.

It can be written as a sum of positive squares in 2 ways, for example, as 42224004 + 7198489 = 6498^2 + 2683^2 .

It is a 4-Lehmer number, since φ(49422493) divides (49422493-1)⁴.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49422493 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 (49422497) 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, 28980 + ... + 30637.

It is an arithmetic number, because the mean of its divisors is an integer number (12370735).

Almost surely, 2^49422493 is an apocalyptic number.

It is an amenable number.

49422493 is a deficient number, since it is larger than the sum of its proper divisors (60447).

49422493 is an equidigital number, since it uses as much as digits as its factorization.

49422493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60446.

The product of its digits is 62208, while the sum is 37.

The square root of 49422493 is about 7030.1132992293. The cubic root of 49422493 is about 366.9792844442.

Subtracting from 49422493 its reverse (39422494), we obtain a palindrome (9999999).

The spelling of 49422493 in words is "forty-nine million, four hundred twenty-two thousand, four hundred ninety-three".