53197878 has 8 divisors (see below), whose sum is σ = 106395768. Its totient is φ = 17732624.

The previous prime is 53197877. The next prime is 53197961. The reversal of 53197878 is 87879135.

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

53197878 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53197877) 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, 4433151 + ... + 4433162.

It is an arithmetic number, because the mean of its divisors is an integer number (13299471).

Almost surely, 2^53197878 is an apocalyptic number.

53197878 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

53197878 is a wasteful number, since it uses less digits than its factorization.

53197878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8866318.

The product of its digits is 423360, while the sum is 48.

The square root of 53197878 is about 7293.6875447197. The cubic root of 53197878 is about 376.0954705132.

The spelling of 53197878 in words is "fifty-three million, one hundred ninety-seven thousand, eight hundred seventy-eight".