53378109 has 16 divisors (see below), whose sum is σ = 80058240. Its totient is φ = 35583948.

The previous prime is 53378107. The next prime is 53378119. The reversal of 53378109 is 90187335.

It is not a de Polignac number, because 53378109 - 2¹ = 53378107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53378107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10017 + ... + 14390.

It is an arithmetic number, because the mean of its divisors is an integer number (5003640).

Almost surely, 2^53378109 is an apocalyptic number.

It is an amenable number.

53378109 is a deficient number, since it is larger than the sum of its proper divisors (26680131).

53378109 is an frugal number, since it uses more digits than its factorization.

53378109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24428 (or 24410 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 53378109 is about 7306.0323705825. The cubic root of 53378109 is about 376.5197208762.

The spelling of 53378109 in words is "fifty-three million, three hundred seventy-eight thousand, one hundred nine".