49561142 has 8 divisors (see below), whose sum is σ = 74464056. Its totient is φ = 24739792.

The previous prime is 49561123. The next prime is 49561147. The reversal of 49561142 is 24116594.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 49561099 and 49561108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49561147) 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, 18848 + ... + 21315.

It is an arithmetic number, because the mean of its divisors is an integer number (9308007).

Almost surely, 2^49561142 is an apocalyptic number.

49561142 is a deficient number, since it is larger than the sum of its proper divisors (24902914).

49561142 is a wasteful number, since it uses less digits than its factorization.

49561142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40782.

The product of its digits is 8640, while the sum is 32.

The square root of 49561142 is about 7039.9674715158. The cubic root of 49561142 is about 367.3221364618.

The spelling of 49561142 in words is "forty-nine million, five hundred sixty-one thousand, one hundred forty-two".