49691554 has 20 divisors (see below), whose sum is σ = 82038870. Its totient is φ = 22573760.

The previous prime is 49691507. The next prime is 49691557. The reversal of 49691554 is 45519694.

49691554 is nontrivially palindromic in base 15.

It can be written as a sum of positive squares in only one way, i.e., 29648025 + 20043529 = 5445^2 + 4477^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 49691554.

It is not an unprimeable number, because it can be changed into a prime (49691557) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 28434 + ... + 30130.

Almost surely, 2^49691554 is an apocalyptic number.

49691554 is a deficient number, since it is larger than the sum of its proper divisors (32347316).

49691554 is an equidigital number, since it uses as much as digits as its factorization.

49691554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743 (or 1710 counting only the distinct ones).

The product of its digits is 194400, while the sum is 43.

The square root of 49691554 is about 7049.2236451967. The cubic root of 49691554 is about 367.6440368954.

The spelling of 49691554 in words is "forty-nine million, six hundred ninety-one thousand, five hundred fifty-four".