49999942 has 4 divisors (see below), whose sum is σ = 74999916. Its totient is φ = 24999970.

The previous prime is 49999921. The next prime is 49999991. The reversal of 49999942 is 24999994.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12499984 + ... + 12499987.

It is an arithmetic number, because the mean of its divisors is an integer number (18749979).

Almost surely, 2^49999942 is an apocalyptic number.

49999942 is a deficient number, since it is larger than the sum of its proper divisors (24999974).

49999942 is a wasteful number, since it uses less digits than its factorization.

49999942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24999973.

The product of its digits is 1889568, while the sum is 55.

The square root of 49999942 is about 7071.0637106450. The cubic root of 49999942 is about 368.4030074148.

It can be divided in two parts, 4999 and 9942, that added together give a palindrome (14941).

The spelling of 49999942 in words is "forty-nine million, nine hundred ninety-nine thousand, nine hundred forty-two".