71553496 has 16 divisors (see below), whose sum is σ = 153329040. Its totient is φ = 30665760.

The previous prime is 71553481. The next prime is 71553509. The reversal of 71553496 is 69435517.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 638815 + ... + 638926.

It is an arithmetic number, because the mean of its divisors is an integer number (9583065).

Almost surely, 2^71553496 is an apocalyptic number.

It is an amenable number.

71553496 is an abundant number, since it is smaller than the sum of its proper divisors (81775544).

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

71553496 is a wasteful number, since it uses less digits than its factorization.

71553496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277754 (or 1277750 counting only the distinct ones).

The product of its digits is 113400, while the sum is 40.

The square root of 71553496 is about 8458.9299559696. The cubic root of 71553496 is about 415.1550124940.

The spelling of 71553496 in words is "seventy-one million, five hundred fifty-three thousand, four hundred ninety-six".