1056556501 has 16 divisors (see below), whose sum is σ = 1418594688. Its totient is φ = 759960000.

The previous prime is 1056556493. The next prime is 1056556531.

1056556501 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 1056556501 - 2³ = 1056556493 is a prime.

It is a super-2 number, since 2×1056556501² = 2232623279610726002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056556531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 526750 + ... + 528751.

It is an arithmetic number, because the mean of its divisors is an integer number (88662168).

Almost surely, 2^1056556501 is an apocalyptic number.

1056556501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1056556501 is a deficient number, since it is larger than the sum of its proper divisors (362038187).

1056556501 is a wasteful number, since it uses less digits than its factorization.

1056556501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055532.

The product of its (nonzero) digits is 22500, while the sum is 34.

The square root of 1056556501 is about 32504.7150579727. The cubic root of 1056556501 is about 1018.5075253858.

The spelling of 1056556501 in words is "one billion, fifty-six million, five hundred fifty-six thousand, five hundred one".