53409386 has 8 divisors (see below), whose sum is σ = 80157924. Its totient is φ = 26690080.

The previous prime is 53409383. The next prime is 53409401. The reversal of 53409386 is 68390435.

It can be written as a sum of positive squares in 2 ways, for example, as 45819361 + 7590025 = 6769^2 + 2755^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (53409383) 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, 1955 + ... + 10518.

Almost surely, 2^53409386 is an apocalyptic number.

53409386 is a deficient number, since it is larger than the sum of its proper divisors (26748538).

53409386 is a wasteful number, since it uses less digits than its factorization.

53409386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14616.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 53409386 is about 7308.1725485924. The cubic root of 53409386 is about 376.5932473220.

The spelling of 53409386 in words is "fifty-three million, four hundred nine thousand, three hundred eighty-six".