2112025457 has 4 divisors (see below), whose sum is σ = 2113121136. Its totient is φ = 2110929780.

The previous prime is 2112025397. The next prime is 2112025463. The reversal of 2112025457 is 7545202112.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2112025457 - 2¹⁴ = 2112009073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112025477) 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, 544943 + ... + 548804.

It is an arithmetic number, because the mean of its divisors is an integer number (528280284).

Almost surely, 2^2112025457 is an apocalyptic number.

It is an amenable number.

2112025457 is a deficient number, since it is larger than the sum of its proper divisors (1095679).

2112025457 is a wasteful number, since it uses less digits than its factorization.

2112025457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095678.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 2112025457 is about 45956.7781399001. The cubic root of 2112025457 is about 1283.0188869146.

Adding to 2112025457 its reverse (7545202112), we get a palindrome (9657227569).

The spelling of 2112025457 in words is "two billion, one hundred twelve million, twenty-five thousand, four hundred fifty-seven".