53388261 has 8 divisors (see below), whose sum is σ = 79093760. Its totient is φ = 35592156.

The previous prime is 53388259. The next prime is 53388263. The reversal of 53388261 is 16288335.

It is an interprime number because it is at equal distance from previous prime (53388259) and next prime (53388263).

It is not a de Polignac number, because 53388261 - 2¹ = 53388259 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 (53388263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 988645 + ... + 988698.

It is an arithmetic number, because the mean of its divisors is an integer number (9886720).

Almost surely, 2^53388261 is an apocalyptic number.

It is an amenable number.

53388261 is a deficient number, since it is larger than the sum of its proper divisors (25705499).

53388261 is a wasteful number, since it uses less digits than its factorization.

53388261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977352 (or 1977346 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 53388261 is about 7306.7271058936. The cubic root of 53388261 is about 376.5435894993.

The spelling of 53388261 in words is "fifty-three million, three hundred eighty-eight thousand, two hundred sixty-one".