53418961 has 4 divisors (see below), whose sum is σ = 53464932. Its totient is φ = 53372992.

The previous prime is 53418929. The next prime is 53418973. The reversal of 53418961 is 16981435.

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 42823936 + 10595025 = 6544^2 + 3255^2 .

It is a cyclic number.

It is not a de Polignac number, because 53418961 - 2⁵ = 53418929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53418961.

It is not an unprimeable number, because it can be changed into a prime (53418901) 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, 21196 + ... + 23581.

It is an arithmetic number, because the mean of its divisors is an integer number (13366233).

Almost surely, 2^53418961 is an apocalyptic number.

It is an amenable number.

53418961 is a deficient number, since it is larger than the sum of its proper divisors (45971).

53418961 is a wasteful number, since it uses less digits than its factorization.

53418961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45970.

The product of its digits is 25920, while the sum is 37.

The square root of 53418961 is about 7308.8276077631. The cubic root of 53418961 is about 376.6157506381.

The spelling of 53418961 in words is "fifty-three million, four hundred eighteen thousand, nine hundred sixty-one".