1055155550 has 24 divisors (see below), whose sum is σ = 1963809576. Its totient is φ = 421799840.

The previous prime is 1055155547. The next prime is 1055155553. The reversal of 1055155550 is 555515501.

It is an interprime number because it is at equal distance from previous prime (1055155547) and next prime (1055155553).

It is a super-2 number, since 2×1055155550² = 2226706469391605000, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055155553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88229 + ... + 99471.

It is an arithmetic number, because the mean of its divisors is an integer number (81825399).

Almost surely, 2^1055155550 is an apocalyptic number.

1055155550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1055155550 is a deficient number, since it is larger than the sum of its proper divisors (908654026).

1055155550 is a wasteful number, since it uses less digits than its factorization.

1055155550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13132 (or 13127 counting only the distinct ones).

The product of its (nonzero) digits is 15625, while the sum is 32.

The square root of 1055155550 is about 32483.1579437714. The cubic root of 1055155550 is about 1018.0571597369.

The spelling of 1055155550 in words is "one billion, fifty-five million, one hundred fifty-five thousand, five hundred fifty".