71370552 has 32 divisors (see below), whose sum is σ = 194647680. Its totient is φ = 21627360.

The previous prime is 71370547. The next prime is 71370557. The reversal of 71370552 is 25507317.

It is an interprime number because it is at equal distance from previous prime (71370547) and next prime (71370557).

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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71370557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134908 + ... + 135435.

It is an arithmetic number, because the mean of its divisors is an integer number (6082740).

Almost surely, 2^71370552 is an apocalyptic number.

It is an amenable number.

71370552 is an abundant number, since it is smaller than the sum of its proper divisors (123277128).

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

71370552 is a wasteful number, since it uses less digits than its factorization.

71370552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270363 (or 270359 counting only the distinct ones).

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 71370552 is about 8448.1093742920. The cubic root of 71370552 is about 414.8008954426.

Adding to 71370552 its reverse (25507317), we get a palindrome (96877869).

The spelling of 71370552 in words is "seventy-one million, three hundred seventy thousand, five hundred fifty-two".