53274649 has 4 divisors (see below), whose sum is σ = 53316900. Its totient is φ = 53232400.

The previous prime is 53274623. The next prime is 53274659. The reversal of 53274649 is 94647235.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94647235 = 5 ⋅18929447.

It can be written as a sum of positive squares in 2 ways, for example, as 7617600 + 45657049 = 2760^2 + 6757^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53274649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53274619) 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, 19174 + ... + 21775.

It is an arithmetic number, because the mean of its divisors is an integer number (13329225).

Almost surely, 2^53274649 is an apocalyptic number.

It is an amenable number.

53274649 is a deficient number, since it is larger than the sum of its proper divisors (42251).

53274649 is a wasteful number, since it uses less digits than its factorization.

53274649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42250.

The product of its digits is 181440, while the sum is 40.

The square root of 53274649 is about 7298.9484859122. The cubic root of 53274649 is about 376.2763007041.

The spelling of 53274649 in words is "fifty-three million, two hundred seventy-four thousand, six hundred forty-nine".