53469661 has 4 divisors (see below), whose sum is σ = 61108192. Its totient is φ = 45831132.

The previous prime is 53469659. The next prime is 53469697. The reversal of 53469661 is 16696435.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53469661 - 2¹ = 53469659 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 (53469631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3819255 + ... + 3819268.

It is an arithmetic number, because the mean of its divisors is an integer number (15277048).

Almost surely, 2^53469661 is an apocalyptic number.

It is an amenable number.

53469661 is a deficient number, since it is larger than the sum of its proper divisors (7638531).

53469661 is an equidigital number, since it uses as much as digits as its factorization.

53469661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7638530.

The product of its digits is 116640, while the sum is 40.

The square root of 53469661 is about 7312.2951937131. The cubic root of 53469661 is about 376.7348617835.

The spelling of 53469661 in words is "fifty-three million, four hundred sixty-nine thousand, six hundred sixty-one".