2125611442 has 4 divisors (see below), whose sum is σ = 3188417166. Its totient is φ = 1062805720.

The previous prime is 2125611361. The next prime is 2125611451. The reversal of 2125611442 is 2441165212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2115172081 + 10439361 = 45991^2 + 3231^2 .

It is a super-2 number, since 2×2125611442² = 9036448004722638728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2125611442.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 531402859 + ... + 531402862.

Almost surely, 2^2125611442 is an apocalyptic number.

2125611442 is a deficient number, since it is larger than the sum of its proper divisors (1062805724).

2125611442 is a wasteful number, since it uses less digits than its factorization.

2125611442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062805723.

The product of its digits is 3840, while the sum is 28.

The square root of 2125611442 is about 46104.3538291125. The cubic root of 2125611442 is about 1285.7640924891.

Adding to 2125611442 its reverse (2441165212), we get a palindrome (4566776654).

The spelling of 2125611442 in words is "two billion, one hundred twenty-five million, six hundred eleven thousand, four hundred forty-two".