71552830 has 16 divisors (see below), whose sum is σ = 136371600. Its totient is φ = 26937472.

The previous prime is 71552827. The next prime is 71552837. The reversal of 71552830 is 3825517.

It is a junction number, because it is equal to n+sod(n) for n = 71552792 and 71552801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71552837) 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, 210280 + ... + 210619.

It is an arithmetic number, because the mean of its divisors is an integer number (8523225).

Almost surely, 2^71552830 is an apocalyptic number.

71552830 is a deficient number, since it is larger than the sum of its proper divisors (64818770).

71552830 is a wasteful number, since it uses less digits than its factorization.

71552830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420923.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 71552830 is about 8458.8905891967. The cubic root of 71552830 is about 415.1537244409.

The spelling of 71552830 in words is "seventy-one million, five hundred fifty-two thousand, eight hundred thirty".