2113554125 has 16 divisors (see below), whose sum is σ = 2651001600. Its totient is φ = 1682326800.

The previous prime is 2113554119. The next prime is 2113554137. The reversal of 2113554125 is 5214553112.

It is not a de Polignac number, because 2113554125 - 2¹² = 2113550029 is a prime.

It is a super-2 number, since 2×2113554125² = 8934222078609031250, which contains 22 as substring.

It is a Curzon number.

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, 17609 + ... + 67358.

It is an arithmetic number, because the mean of its divisors is an integer number (165687600).

Almost surely, 2^2113554125 is an apocalyptic number.

2113554125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2113554125 is a deficient number, since it is larger than the sum of its proper divisors (537447475).

2113554125 is an equidigital number, since it uses as much as digits as its factorization.

2113554125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85181 (or 85171 counting only the distinct ones).

The product of its digits is 6000, while the sum is 29.

The square root of 2113554125 is about 45973.4067151870. The cubic root of 2113554125 is about 1283.3283587071.

The spelling of 2113554125 in words is "two billion, one hundred thirteen million, five hundred fifty-four thousand, one hundred twenty-five".