53478121 has 8 divisors (see below), whose sum is σ = 54345600. Its totient is φ = 52614432.

The previous prime is 53478109. The next prime is 53478133. The reversal of 53478121 is 12187435.

It is an interprime number because it is at equal distance from previous prime (53478109) and next prime (53478133).

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

It is a cyclic number.

It is not a de Polignac number, because 53478121 - 2¹⁹ = 52953833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53478101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43116 + ... + 44338.

It is an arithmetic number, because the mean of its divisors is an integer number (6793200).

Almost surely, 2^53478121 is an apocalyptic number.

It is an amenable number.

53478121 is a deficient number, since it is larger than the sum of its proper divisors (867479).

53478121 is a wasteful number, since it uses less digits than its factorization.

53478121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895.

The product of its digits is 6720, while the sum is 31.

The square root of 53478121 is about 7312.8736485735. The cubic root of 53478121 is about 376.7547298033.

The spelling of 53478121 in words is "fifty-three million, four hundred seventy-eight thousand, one hundred twenty-one".