53409506 has 4 divisors (see below), whose sum is σ = 80114262. Its totient is φ = 26704752.

The previous prime is 53409491. The next prime is 53409527. The reversal of 53409506 is 60590435.

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: 60590435 = 5 ⋅12118087.

It can be written as a sum of positive squares in only one way, i.e., 34703881 + 18705625 = 5891^2 + 4325^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13352375 + ... + 13352378.

Almost surely, 2^53409506 is an apocalyptic number.

53409506 is a deficient number, since it is larger than the sum of its proper divisors (26704756).

53409506 is a wasteful number, since it uses less digits than its factorization.

53409506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26704755.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 53409506 is about 7308.1807585746. The cubic root of 53409506 is about 376.5935293646.

The spelling of 53409506 in words is "fifty-three million, four hundred nine thousand, five hundred six".