53449877 has 4 divisors (see below), whose sum is σ = 57561420. Its totient is φ = 49338336.

The previous prime is 53449873. The next prime is 53449883. The reversal of 53449877 is 77894435.

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 5202961 + 48246916 = 2281^2 + 6946^2 .

It is a cyclic number.

It is not a de Polignac number, because 53449877 - 2² = 53449873 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 (53449873) 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, 2055752 + ... + 2055777.

It is an arithmetic number, because the mean of its divisors is an integer number (14390355).

Almost surely, 2^53449877 is an apocalyptic number.

It is an amenable number.

53449877 is a deficient number, since it is larger than the sum of its proper divisors (4111543).

53449877 is a wasteful number, since it uses less digits than its factorization.

53449877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4111542.

The product of its digits is 846720, while the sum is 47.

The square root of 53449877 is about 7310.9422785302. The cubic root of 53449877 is about 376.6883915559.

The spelling of 53449877 in words is "fifty-three million, four hundred forty-nine thousand, eight hundred seventy-seven".