1260556001 has 8 divisors (see below), whose sum is σ = 1336416480. Its totient is φ = 1184885568.

The previous prime is 1260555991. The next prime is 1260556049. The reversal of 1260556001 is 1006550621.

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 1260556001 - 2²⁶ = 1193447137 is a prime.

It is a super-2 number, since 2×1260556001² = 3178002863314224002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1260556091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33731 + ... + 60488.

It is an arithmetic number, because the mean of its divisors is an integer number (167052060).

Almost surely, 2^1260556001 is an apocalyptic number.

It is an amenable number.

1260556001 is a deficient number, since it is larger than the sum of its proper divisors (75860479).

1260556001 is an equidigital number, since it uses as much as digits as its factorization.

1260556001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95023.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1260556001 is about 35504.3096116514. The cubic root of 1260556001 is about 1080.2411444267.

The spelling of 1260556001 in words is "one billion, two hundred sixty million, five hundred fifty-six thousand, one".