54149761 has 4 divisors (see below), whose sum is σ = 55037524. Its totient is φ = 53262000.

The previous prime is 54149737. The next prime is 54149773. The reversal of 54149761 is 16794145.

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 23280625 + 30869136 = 4825^2 + 5556^2 .

It is a cyclic number.

It is not a de Polignac number, because 54149761 - 2⁷ = 54149633 is a prime.

It is a super-3 number, since 3×54149761³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54149761.

It is not an unprimeable number, because it can be changed into a prime (54149731) 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, 443790 + ... + 443911.

It is an arithmetic number, because the mean of its divisors is an integer number (13759381).

Almost surely, 2^54149761 is an apocalyptic number.

It is an amenable number.

54149761 is a deficient number, since it is larger than the sum of its proper divisors (887763).

54149761 is an equidigital number, since it uses as much as digits as its factorization.

54149761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887762.

The product of its digits is 30240, while the sum is 37.

The square root of 54149761 is about 7358.6521184249. The cubic root of 54149761 is about 378.3254128810.

The spelling of 54149761 in words is "fifty-four million, one hundred forty-nine thousand, seven hundred sixty-one".