53261181 has 12 divisors (see below), whose sum is σ = 78081952. Its totient is φ = 34977096.

The previous prime is 53261177. The next prime is 53261189. The reversal of 53261181 is 18116235.

It is not a de Polignac number, because 53261181 - 2² = 53261177 is a prime.

It is a super-2 number, since 2×53261181² = 5673506803029522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53261189) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43561 + ... + 44766.

Almost surely, 2^53261181 is an apocalyptic number.

It is an amenable number.

53261181 is a deficient number, since it is larger than the sum of its proper divisors (24820771).

53261181 is a wasteful number, since it uses less digits than its factorization.

53261181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88400 (or 88397 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 53261181 is about 7298.0258289485. The cubic root of 53261181 is about 376.2445900849.

The spelling of 53261181 in words is "fifty-three million, two hundred sixty-one thousand, one hundred eighty-one".