1055279155 has 8 divisors (see below), whose sum is σ = 1447240032. Its totient is φ = 723619968.

The previous prime is 1055279107. The next prime is 1055279161. The reversal of 1055279155 is 5519725501.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1055279155 - 2²³ = 1046890547 is a prime.

It is a super-2 number, since 2×1055279155² = 2227228189955028050, 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, 15075382 + ... + 15075451.

It is an arithmetic number, because the mean of its divisors is an integer number (180905004).

Almost surely, 2^1055279155 is an apocalyptic number.

1055279155 is a deficient number, since it is larger than the sum of its proper divisors (391960877).

1055279155 is an equidigital number, since it uses as much as digits as its factorization.

1055279155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30150845.

The product of its (nonzero) digits is 78750, while the sum is 40.

The square root of 1055279155 is about 32485.0604894004. The cubic root of 1055279155 is about 1018.0969112352.

The spelling of 1055279155 in words is "one billion, fifty-five million, two hundred seventy-nine thousand, one hundred fifty-five".