53142261 has 16 divisors (see below), whose sum is σ = 72173568. Its totient is φ = 34776000.

The previous prime is 53142253. The next prime is 53142263. The reversal of 53142261 is 16224135.

It is not a de Polignac number, because 53142261 - 2³ = 53142253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53142263) 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, 37791 + ... + 39171.

It is an arithmetic number, because the mean of its divisors is an integer number (4510848).

Almost surely, 2^53142261 is an apocalyptic number.

It is an amenable number.

53142261 is a deficient number, since it is larger than the sum of its proper divisors (19031307).

53142261 is a wasteful number, since it uses less digits than its factorization.

53142261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612.

The product of its digits is 1440, while the sum is 24.

The square root of 53142261 is about 7289.8738672216. The cubic root of 53142261 is about 375.9643587953.

Adding to 53142261 its reverse (16224135), we get a palindrome (69366396).

The spelling of 53142261 in words is "fifty-three million, one hundred forty-two thousand, two hundred sixty-one".