2125717456 has 10 divisors (see below), whose sum is σ = 4118577602. Its totient is φ = 1062858720.

The previous prime is 2125717453. The next prime is 2125717537. The reversal of 2125717456 is 6547175212.

It can be written as a sum of positive squares in only one way, i.e., 1143521856 + 982195600 = 33816^2 + 31340^2 .

It is a super-2 number, since 2×2125717456² = 9037349405486223872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125717453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66428655 + ... + 66428686.

Almost surely, 2^2125717456 is an apocalyptic number.

It is an amenable number.

2125717456 is a deficient number, since it is larger than the sum of its proper divisors (1992860146).

2125717456 is a wasteful number, since it uses less digits than its factorization.

2125717456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132857349 (or 132857343 counting only the distinct ones).

The product of its digits is 117600, while the sum is 40.

The square root of 2125717456 is about 46105.5035326587. The cubic root of 2125717456 is about 1285.7854677862.

The spelling of 2125717456 in words is "two billion, one hundred twenty-five million, seven hundred seventeen thousand, four hundred fifty-six".