125557466 has 4 divisors (see below), whose sum is σ = 188336202. Its totient is φ = 62778732.

The previous prime is 125557451. The next prime is 125557507. The reversal of 125557466 is 664755521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 664755521 = 53 ⋅12542557.

It can be written as a sum of positive squares in only one way, i.e., 125328025 + 229441 = 11195^2 + 479^2 .

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 as a sum of consecutive naturals, namely, 31389365 + ... + 31389368.

Almost surely, 2^125557466 is an apocalyptic number.

125557466 is a deficient number, since it is larger than the sum of its proper divisors (62778736).

125557466 is an equidigital number, since it uses as much as digits as its factorization.

125557466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62778735.

The product of its digits is 252000, while the sum is 41.

The square root of 125557466 is about 11205.2427907654. The cubic root of 125557466 is about 500.7421857754.

The spelling of 125557466 in words is "one hundred twenty-five million, five hundred fifty-seven thousand, four hundred sixty-six".