2111442525 has 48 divisors (see below), whose sum is σ = 3886864320. Its totient is φ = 1123761600.

The previous prime is 2111442511. The next prime is 2111442539. The reversal of 2111442525 is 5252441112.

It is a happy number.

2111442525 is a `hidden beast` number, since 21 + 114 + 4 + 2 + 525 = 666.

It is an interprime number because it is at equal distance from previous prime (2111442511) and next prime (2111442539).

It is not a de Polignac number, because 2111442525 - 2⁷ = 2111442397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 350035 + ... + 356015.

It is an arithmetic number, because the mean of its divisors is an integer number (80976340).

Almost surely, 2^2111442525 is an apocalyptic number.

2111442525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2111442525 is a deficient number, since it is larger than the sum of its proper divisors (1775421795).

2111442525 is a wasteful number, since it uses less digits than its factorization.

2111442525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6523 (or 6512 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 2111442525 is about 45950.4355256835. The cubic root of 2111442525 is about 1282.9008356882.

Adding to 2111442525 its reverse (5252441112), we get a palindrome (7363883637).

The spelling of 2111442525 in words is "two billion, one hundred eleven million, four hundred forty-two thousand, five hundred twenty-five".