1377958553 has 2 divisors, whose sum is σ = 1377958554. Its totient is φ = 1377958552.

The previous prime is 1377958541. The next prime is 1377958573. The reversal of 1377958553 is 3558597731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1016844544 + 361114009 = 31888^2 + 19003^2 .

It is a cyclic number.

It is not a de Polignac number, because 1377958553 - 2⁴ = 1377958537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1377958495 and 1377958504.

It is not a weakly prime, because it can be changed into another prime (1377958523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688979276 + 688979277.

It is an arithmetic number, because the mean of its divisors is an integer number (688979277).

Almost surely, 2^1377958553 is an apocalyptic number.

It is an amenable number.

1377958553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1377958553 is an equidigital number, since it uses as much as digits as its factorization.

1377958553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3969000, while the sum is 53.

The square root of 1377958553 is about 37120.8641197912. The cubic root of 1377958553 is about 1112.7870209733.

The spelling of 1377958553 in words is "one billion, three hundred seventy-seven million, nine hundred fifty-eight thousand, five hundred fifty-three".