1055121506 has 8 divisors (see below), whose sum is σ = 1582920144. Its totient is φ = 527481460.

The previous prime is 1055121491. The next prime is 1055121533. The reversal of 1055121506 is 6051215501.

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

It is a super-2 number, since 2×1055121506² = 2226562784847416072, which contains 22 as substring.

It is a Curzon 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, 21320 + ... + 50643.

It is an arithmetic number, because the mean of its divisors is an integer number (197865018).

Almost surely, 2^1055121506 is an apocalyptic number.

1055121506 is a deficient number, since it is larger than the sum of its proper divisors (527798638).

1055121506 is an equidigital number, since it uses as much as digits as its factorization.

1055121506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79296.

The product of its (nonzero) digits is 1500, while the sum is 26.

The square root of 1055121506 is about 32482.6339141394. The cubic root of 1055121506 is about 1018.0462106054.

The spelling of 1055121506 in words is "one billion, fifty-five million, one hundred twenty-one thousand, five hundred six".