49491554 has 16 divisors (see below), whose sum is σ = 85315776. Its totient is φ = 21092400.

The previous prime is 49491553. The next prime is 49491571. The reversal of 49491554 is 45519494.

It is not an unprimeable number, because it can be changed into a prime (49491553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7232 + ... + 12299.

It is an arithmetic number, because the mean of its divisors is an integer number (5332236).

Almost surely, 2^49491554 is an apocalyptic number.

49491554 is a deficient number, since it is larger than the sum of its proper divisors (35824222).

49491554 is a wasteful number, since it uses less digits than its factorization.

49491554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19721.

The product of its digits is 129600, while the sum is 41.

The square root of 49491554 is about 7035.0233830457. The cubic root of 49491554 is about 367.1501389082.

The spelling of 49491554 in words is "forty-nine million, four hundred ninety-one thousand, five hundred fifty-four".