1655273463 has 4 divisors (see below), whose sum is σ = 2207031288. Its totient is φ = 1103515640.

The previous prime is 1655273449. The next prime is 1655273507. The reversal of 1655273463 is 3643725561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1655273463 - 2¹⁶ = 1655207927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1655273413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275878908 + ... + 275878913.

It is an arithmetic number, because the mean of its divisors is an integer number (551757822).

Almost surely, 2^1655273463 is an apocalyptic number.

1655273463 is a deficient number, since it is larger than the sum of its proper divisors (551757825).

1655273463 is an equidigital number, since it uses as much as digits as its factorization.

1655273463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551757824.

The product of its digits is 453600, while the sum is 42.

The square root of 1655273463 is about 40685.0520830440. The cubic root of 1655273463 is about 1182.9232946500.

The spelling of 1655273463 in words is "one billion, six hundred fifty-five million, two hundred seventy-three thousand, four hundred sixty-three".