54909761 has 4 divisors (see below), whose sum is σ = 55453524. Its totient is φ = 54366000.

The previous prime is 54909733. The next prime is 54909781. The reversal of 54909761 is 16790945.

54909761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 40704400 + 14205361 = 6380^2 + 3769^2 .

It is a cyclic number.

It is not a de Polignac number, because 54909761 - 2⁶ = 54909697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54909721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271730 + ... + 271931.

It is an arithmetic number, because the mean of its divisors is an integer number (13863381).

Almost surely, 2^54909761 is an apocalyptic number.

It is an amenable number.

54909761 is a deficient number, since it is larger than the sum of its proper divisors (543763).

54909761 is a wasteful number, since it uses less digits than its factorization.

54909761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543762.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 54909761 is about 7410.1120774250. The cubic root of 54909761 is about 380.0871476024.

It can be divided in two parts, 5490 and 9761, that added together give a palindrome (15251).

The spelling of 54909761 in words is "fifty-four million, nine hundred nine thousand, seven hundred sixty-one".