2214155725 has 12 divisors (see below), whose sum is σ = 2778634656. Its totient is φ = 1749981680.

The previous prime is 2214155707. The next prime is 2214155729. The reversal of 2214155725 is 5275514122.

It is not a de Polignac number, because 2214155725 - 2⁹ = 2214155213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2214155729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 531457 + ... + 535606.

It is an arithmetic number, because the mean of its divisors is an integer number (231552888).

Almost surely, 2^2214155725 is an apocalyptic number.

2214155725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2214155725 is a deficient number, since it is larger than the sum of its proper divisors (564478931).

2214155725 is a wasteful number, since it uses less digits than its factorization.

2214155725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067156 (or 1067151 counting only the distinct ones).

The product of its digits is 28000, while the sum is 34.

The square root of 2214155725 is about 47054.8161722049. The cubic root of 2214155725 is about 1303.3750025742.

Adding to 2214155725 its reverse (5275514122), we get a palindrome (7489669847).

The spelling of 2214155725 in words is "two billion, two hundred fourteen million, one hundred fifty-five thousand, seven hundred twenty-five".