49145966 has 4 divisors (see below), whose sum is σ = 73718952. Its totient is φ = 24572982.

The previous prime is 49145939. The next prime is 49145969. The reversal of 49145966 is 66954194.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49145969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12286490 + ... + 12286493.

It is an arithmetic number, because the mean of its divisors is an integer number (18429738).

Almost surely, 2^49145966 is an apocalyptic number.

49145966 is a deficient number, since it is larger than the sum of its proper divisors (24572986).

49145966 is a wasteful number, since it uses less digits than its factorization.

49145966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24572985.

The product of its digits is 233280, while the sum is 44.

The square root of 49145966 is about 7010.4183897967. The cubic root of 49145966 is about 366.2935674079.

The spelling of 49145966 in words is "forty-nine million, one hundred forty-five thousand, nine hundred sixty-six".