53821470 has 16 divisors (see below), whose sum is σ = 129171600. Its totient is φ = 14352384.

The previous prime is 53821441. The next prime is 53821489. The reversal of 53821470 is 7412835.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1794049 = 53821470 / (5 + 3 + 8 + 2 + 1 + 4 + 7 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 896995 + ... + 897054.

It is an arithmetic number, because the mean of its divisors is an integer number (8073225).

Almost surely, 2^53821470 is an apocalyptic number.

53821470 is an abundant number, since it is smaller than the sum of its proper divisors (75350130).

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

53821470 is a wasteful number, since it uses less digits than its factorization.

53821470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794059.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 53821470 is about 7336.3117436488. The cubic root of 53821470 is about 377.5593111784.

The spelling of 53821470 in words is "fifty-three million, eight hundred twenty-one thousand, four hundred seventy".