53049149 has 4 divisors (see below), whose sum is σ = 54878460. Its totient is φ = 51219840.

The previous prime is 53049137. The next prime is 53049167. The reversal of 53049149 is 94194035.

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 31024900 + 22024249 = 5570^2 + 4693^2 .

It is a cyclic number.

It is not a de Polignac number, because 53049149 - 2⁴ = 53049133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53049119) 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, 914612 + ... + 914669.

It is an arithmetic number, because the mean of its divisors is an integer number (13719615).

Almost surely, 2^53049149 is an apocalyptic number.

It is an amenable number.

53049149 is a deficient number, since it is larger than the sum of its proper divisors (1829311).

53049149 is a wasteful number, since it uses less digits than its factorization.

53049149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829310.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 53049149 is about 7283.4846742476. The cubic root of 53049149 is about 375.7446513027.

The spelling of 53049149 in words is "fifty-three million, forty-nine thousand, one hundred forty-nine".