53347478 has 32 divisors (see below), whose sum is σ = 87423840. Its totient is φ = 24330240.

The previous prime is 53347471. The next prime is 53347507. The reversal of 53347478 is 87474335.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53347471) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 150950 + ... + 151302.

It is an arithmetic number, because the mean of its divisors is an integer number (2731995).

Almost surely, 2^53347478 is an apocalyptic number.

53347478 is a deficient number, since it is larger than the sum of its proper divisors (34076362).

53347478 is a wasteful number, since it uses less digits than its factorization.

53347478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512.

The product of its digits is 282240, while the sum is 41.

The square root of 53347478 is about 7303.9357883267. The cubic root of 53347478 is about 376.4476852134.

The spelling of 53347478 in words is "fifty-three million, three hundred forty-seven thousand, four hundred seventy-eight".