1211652055 has 16 divisors (see below), whose sum is σ = 1471737600. Its totient is φ = 957529600.

The previous prime is 1211652047. The next prime is 1211652073. The reversal of 1211652055 is 5502561121.

It is not a de Polignac number, because 1211652055 - 2³ = 1211652047 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239391 + ... + 244399.

It is an arithmetic number, because the mean of its divisors is an integer number (91983600).

Almost surely, 2^1211652055 is an apocalyptic number.

1211652055 is a deficient number, since it is larger than the sum of its proper divisors (260085545).

1211652055 is a wasteful number, since it uses less digits than its factorization.

1211652055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5594.

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 1211652055 is about 34808.7927828588. The cubic root of 1211652055 is about 1066.0869841266.

The spelling of 1211652055 in words is "one billion, two hundred eleven million, six hundred fifty-two thousand, fifty-five".