53680155 has 24 divisors (see below), whose sum is σ = 88494096. Its totient is φ = 27766080.

The previous prime is 53680153. The next prime is 53680241. The reversal of 53680155 is 55108635.

It is not a de Polignac number, because 53680155 - 2¹ = 53680153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53680153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172450 + ... + 172760.

It is an arithmetic number, because the mean of its divisors is an integer number (3687254).

Almost surely, 2^53680155 is an apocalyptic number.

53680155 is a deficient number, since it is larger than the sum of its proper divisors (34813941).

53680155 is an equidigital number, since it uses as much as digits as its factorization.

53680155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667 (or 356 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 53680155 is about 7326.6742114004. The cubic root of 53680155 is about 377.2285784872.

It can be divided in two parts, 53680 and 155, that added together give a palindrome (53835).

The spelling of 53680155 in words is "fifty-three million, six hundred eighty thousand, one hundred fifty-five".