53215446 has 8 divisors (see below), whose sum is σ = 106430904. Its totient is φ = 17738480.

The previous prime is 53215439. The next prime is 53215453. The reversal of 53215446 is 64451235.

It is an interprime number because it is at equal distance from previous prime (53215439) and next prime (53215453).

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

53215446 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4434615 + ... + 4434626.

It is an arithmetic number, because the mean of its divisors is an integer number (13303863).

Almost surely, 2^53215446 is an apocalyptic number.

53215446 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53215446 is a wasteful number, since it uses less digits than its factorization.

53215446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8869246.

The product of its digits is 14400, while the sum is 30.

The square root of 53215446 is about 7294.8917743857. The cubic root of 53215446 is about 376.1368663877.

The spelling of 53215446 in words is "fifty-three million, two hundred fifteen thousand, four hundred forty-six".