1252555364211 has 4 divisors (see below), whose sum is σ = 1670073818952. Its totient is φ = 835036909472.

The previous prime is 1252555364209. The next prime is 1252555364233. The reversal of 1252555364211 is 1124635552521.

It is a happy number.

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 1252555364211 - 2¹ = 1252555364209 is a prime.

It is a super-3 number, since 3×1252555364211³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1252555364111) 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, 208759227366 + ... + 208759227371.

It is an arithmetic number, because the mean of its divisors is an integer number (417518454738).

Almost surely, 2^{1252555364211} is an apocalyptic number.

1252555364211 is a deficient number, since it is larger than the sum of its proper divisors (417518454741).

1252555364211 is an equidigital number, since it uses as much as digits as its factorization.

1252555364211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417518454740.

The product of its digits is 360000, while the sum is 42.

The spelling of 1252555364211 in words is "one trillion, two hundred fifty-two billion, five hundred fifty-five million, three hundred sixty-four thousand, two hundred eleven".