53178397 has 16 divisors (see below), whose sum is σ = 60264000. Its totient is φ = 46621440.

The previous prime is 53178379. The next prime is 53178409. The reversal of 53178397 is 79387135.

53178397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53178397 - 2¹⁵ = 53145629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53178497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18354 + ... + 21052.

It is an arithmetic number, because the mean of its divisors is an integer number (3766500).

Almost surely, 2^53178397 is an apocalyptic number.

It is an amenable number.

53178397 is a deficient number, since it is larger than the sum of its proper divisors (7085603).

53178397 is a wasteful number, since it uses less digits than its factorization.

53178397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2796.

The product of its digits is 158760, while the sum is 43.

The square root of 53178397 is about 7292.3519525596. The cubic root of 53178397 is about 376.0495563361.

The spelling of 53178397 in words is "fifty-three million, one hundred seventy-eight thousand, three hundred ninety-seven".