2155716273 has 8 divisors (see below), whose sum is σ = 2874564000. Its totient is φ = 1437006368.

The previous prime is 2155716253. The next prime is 2155716287. The reversal of 2155716273 is 3726175512.

It is a happy number.

2155716273 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2155716273 - 2⁶ = 2155716209 is a prime.

It is a super-2 number, since 2×2155716273² = 9294225299354021058, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2155716203) 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, 10378 + ... + 66476.

It is an arithmetic number, because the mean of its divisors is an integer number (359320500).

Almost surely, 2^2155716273 is an apocalyptic number.

It is an amenable number.

2155716273 is a deficient number, since it is larger than the sum of its proper divisors (718847727).

2155716273 is a wasteful number, since it uses less digits than its factorization.

2155716273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68911.

The product of its digits is 88200, while the sum is 39.

The square root of 2155716273 is about 46429.6917176929. The cubic root of 2155716273 is about 1291.8057105196.

The spelling of 2155716273 in words is "two billion, one hundred fifty-five million, seven hundred sixteen thousand, two hundred seventy-three".