71350554 has 48 divisors (see below), whose sum is σ = 163711296. Its totient is φ = 20676480.

The previous prime is 71350549. The next prime is 71350571. The reversal of 71350554 is 45505317.

It is a super-2 number, since 2×71350554² = 10181803112213832, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14562 + ... + 18834.

It is an arithmetic number, because the mean of its divisors is an integer number (3410652).

Almost surely, 2^71350554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71350554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81855648).

71350554 is an abundant number, since it is smaller than the sum of its proper divisors (92360742).

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

71350554 is a wasteful number, since it uses less digits than its factorization.

71350554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4323 (or 4312 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 71350554 is about 8446.9257129443. The cubic root of 71350554 is about 414.7621494755.

The spelling of 71350554 in words is "seventy-one million, three hundred fifty thousand, five hundred fifty-four".