1377253655 has 4 divisors (see below), whose sum is σ = 1652704392. Its totient is φ = 1101802920.

The previous prime is 1377253649. The next prime is 1377253679. The reversal of 1377253655 is 5563527731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5563527731 = 19 ⋅292817249.

It is a de Polignac number, because none of the positive numbers 2^k-1377253655 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137725361 + ... + 137725370.

It is an arithmetic number, because the mean of its divisors is an integer number (413176098).

Almost surely, 2^1377253655 is an apocalyptic number.

1377253655 is a deficient number, since it is larger than the sum of its proper divisors (275450737).

1377253655 is an equidigital number, since it uses as much as digits as its factorization.

1377253655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275450736.

The product of its digits is 661500, while the sum is 44.

The square root of 1377253655 is about 37111.3682717304. The cubic root of 1377253655 is about 1112.5972389861.

The spelling of 1377253655 in words is "one billion, three hundred seventy-seven million, two hundred fifty-three thousand, six hundred fifty-five".