53521870 has 8 divisors (see below), whose sum is σ = 96339384. Its totient is φ = 21408744.

The previous prime is 53521837. The next prime is 53521873. The reversal of 53521870 is 7812535.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53521873) 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, 2676084 + ... + 2676103.

It is an arithmetic number, because the mean of its divisors is an integer number (12042423).

Almost surely, 2^53521870 is an apocalyptic number.

53521870 is a deficient number, since it is larger than the sum of its proper divisors (42817514).

53521870 is a wasteful number, since it uses less digits than its factorization.

53521870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5352194.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 53521870 is about 7315.8642688339. The cubic root of 53521870 is about 376.8574394083.

The spelling of 53521870 in words is "fifty-three million, five hundred twenty-one thousand, eight hundred seventy".