71132553 has 8 divisors (see below), whose sum is σ = 105381600. Its totient is φ = 47421684.

The previous prime is 71132549. The next prime is 71132597. The reversal of 71132553 is 35523117.

It is not a de Polignac number, because 71132553 - 2² = 71132549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2634539 = 71132553 / (7 + 1 + 1 + 3 + 2 + 5 + 5 + 3).

It is not an unprimeable number, because it can be changed into a prime (71132513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1317243 + ... + 1317296.

It is an arithmetic number, because the mean of its divisors is an integer number (13172700).

Almost surely, 2^71132553 is an apocalyptic number.

It is an amenable number.

71132553 is a deficient number, since it is larger than the sum of its proper divisors (34249047).

71132553 is a wasteful number, since it uses less digits than its factorization.

71132553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2634548 (or 2634542 counting only the distinct ones).

The product of its digits is 3150, while the sum is 27.

The square root of 71132553 is about 8434.0116789106. The cubic root of 71132553 is about 414.3393038598.

The spelling of 71132553 in words is "seventy-one million, one hundred thirty-two thousand, five hundred fifty-three".