53466021 has 16 divisors (see below), whose sum is σ = 90524800. Its totient is φ = 30551904.

The previous prime is 53466011. The next prime is 53466089. The reversal of 53466021 is 12066435.

53466021 is a `hidden beast` number, since 53 + 4 + 6 + 602 + 1 = 666.

It is not a de Polignac number, because 53466021 - 2⁵ = 53465989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53466011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141256 + ... + 141633.

It is an arithmetic number, because the mean of its divisors is an integer number (5657800).

Almost surely, 2^53466021 is an apocalyptic number.

It is an amenable number.

53466021 is a deficient number, since it is larger than the sum of its proper divisors (37058779).

53466021 is a wasteful number, since it uses less digits than its factorization.

53466021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282905 (or 282899 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 53466021 is about 7312.0462936171. The cubic root of 53466021 is about 376.7263127235.

The spelling of 53466021 in words is "fifty-three million, four hundred sixty-six thousand, twenty-one".