1055215351 has 4 divisors (see below), whose sum is σ = 1055507400. Its totient is φ = 1054923304.

The previous prime is 1055215333. The next prime is 1055215363. The reversal of 1055215351 is 1535125501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1055215351 - 2¹¹ = 1055213303 is a prime.

It is a super-2 number, since 2×1055215351² = 2226958873972106402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055215391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140536 + ... + 147853.

It is an arithmetic number, because the mean of its divisors is an integer number (263876850).

Almost surely, 2^1055215351 is an apocalyptic number.

1055215351 is a deficient number, since it is larger than the sum of its proper divisors (292049).

1055215351 is an equidigital number, since it uses as much as digits as its factorization.

1055215351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292048.

The product of its (nonzero) digits is 3750, while the sum is 28.

The square root of 1055215351 is about 32484.0784231291. The cubic root of 1055215351 is about 1018.0763921892.

The spelling of 1055215351 in words is "one billion, fifty-five million, two hundred fifteen thousand, three hundred fifty-one".