49089538 has 4 divisors (see below), whose sum is σ = 73634310. Its totient is φ = 24544768.

The previous prime is 49089533. The next prime is 49089539. The reversal of 49089538 is 83598094.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83598094 = 2 ⋅41799047.

It can be written as a sum of positive squares in only one way, i.e., 48902049 + 187489 = 6993^2 + 433^2 .

It is not an unprimeable number, because it can be changed into a prime (49089533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12272383 + ... + 12272386.

Almost surely, 2^49089538 is an apocalyptic number.

49089538 is a deficient number, since it is larger than the sum of its proper divisors (24544772).

49089538 is a wasteful number, since it uses less digits than its factorization.

49089538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24544771.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 49089538 is about 7006.3926524282. The cubic root of 49089538 is about 366.1533244354.

The spelling of 49089538 in words is "forty-nine million, eighty-nine thousand, five hundred thirty-eight".