71448552 has 192 divisors, whose sum is σ = 242611200. Its totient is φ = 18524160.

The previous prime is 71448529. The next prime is 71448563. The reversal of 71448552 is 25584417.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 265474 + ... + 265742.

It is an arithmetic number, because the mean of its divisors is an integer number (1263600).

Almost surely, 2^71448552 is an apocalyptic number.

71448552 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71448552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121305600).

71448552 is an abundant number, since it is smaller than the sum of its proper divisors (171162648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71448552 is a wasteful number, since it uses less digits than its factorization.

71448552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336 (or 329 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 71448552 is about 8452.7245311793. The cubic root of 71448552 is about 414.9519506958.

The spelling of 71448552 in words is "seventy-one million, four hundred forty-eight thousand, five hundred fifty-two".