1055361655 has 4 divisors (see below), whose sum is σ = 1266433992. Its totient is φ = 844289320.

The previous prime is 1055361623. The next prime is 1055361661. The reversal of 1055361655 is 5561635501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5561635501 = 37 ⋅150314473.

It is not a de Polignac number, because 1055361655 - 2⁵ = 1055361623 is a prime.

It is a super-2 number, since 2×1055361655² = 2227576445688678050, which contains 22 as substring.

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, 105536161 + ... + 105536170.

It is an arithmetic number, because the mean of its divisors is an integer number (316608498).

Almost surely, 2^1055361655 is an apocalyptic number.

1055361655 is a deficient number, since it is larger than the sum of its proper divisors (211072337).

1055361655 is an equidigital number, since it uses as much as digits as its factorization.

1055361655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211072336.

The product of its (nonzero) digits is 67500, while the sum is 37.

The square root of 1055361655 is about 32486.3302790574. The cubic root of 1055361655 is about 1018.1234415948.

The spelling of 1055361655 in words is "one billion, fifty-five million, three hundred sixty-one thousand, six hundred fifty-five".