2571216403 has 8 divisors (see below), whose sum is σ = 2939921408. Its totient is φ = 2202858504.

The previous prime is 2571216379. The next prime is 2571216409. The reversal of 2571216403 is 3046121752.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2571216403 - 2²⁹ = 2034345491 is a prime.

It is a super-2 number, since 2×2571216403² = 13222307582112516818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2571216409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70701 + ... + 100702.

It is an arithmetic number, because the mean of its divisors is an integer number (367490176).

Almost surely, 2^2571216403 is an apocalyptic number.

2571216403 is a deficient number, since it is larger than the sum of its proper divisors (368705005).

2571216403 is a wasteful number, since it uses less digits than its factorization.

2571216403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173553.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 2571216403 is about 50707.1632316382. The cubic root of 2571216403 is about 1369.9757402421.

The spelling of 2571216403 in words is "two billion, five hundred seventy-one million, two hundred sixteen thousand, four hundred three".