1055551555 has 8 divisors (see below), whose sum is σ = 1333328400. Its totient is φ = 799996896.

The previous prime is 1055551537. The next prime is 1055551583. The reversal of 1055551555 is 5551555501.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1055551555 is a prime.

It is a super-2 number, since 2×1055551555² = 2228378170525836050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5555440 + ... + 5555629.

It is an arithmetic number, because the mean of its divisors is an integer number (166666050).

Almost surely, 2^1055551555 is an apocalyptic number.

1055551555 is a deficient number, since it is larger than the sum of its proper divisors (277776845).

1055551555 is a wasteful number, since it uses less digits than its factorization.

1055551555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11111093.

The product of its (nonzero) digits is 78125, while the sum is 37.

The square root of 1055551555 is about 32489.2529153873. The cubic root of 1055551555 is about 1018.1845044053.

The spelling of 1055551555 in words is "one billion, fifty-five million, five hundred fifty-one thousand, five hundred fifty-five".