49999522 has 4 divisors (see below), whose sum is σ = 74999286. Its totient is φ = 24999760.

The previous prime is 49999489. The next prime is 49999529. The reversal of 49999522 is 22599994.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22599994 = 2 ⋅11299997.

It can be written as a sum of positive squares in only one way, i.e., 31259281 + 18740241 = 5591^2 + 4329^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (49999529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12499879 + ... + 12499882.

Almost surely, 2^49999522 is an apocalyptic number.

49999522 is a deficient number, since it is larger than the sum of its proper divisors (24999764).

49999522 is a wasteful number, since it uses less digits than its factorization.

49999522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24999763.

The product of its digits is 524880, while the sum is 49.

The square root of 49999522 is about 7071.0340120806. The cubic root of 49999522 is about 368.4019758823.

The spelling of 49999522 in words is "forty-nine million, nine hundred ninety-nine thousand, five hundred twenty-two".