125563773 has 8 divisors (see below), whose sum is σ = 167493600. Its totient is φ = 83671568.

The previous prime is 125563769. The next prime is 125563787. The reversal of 125563773 is 377365521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125563773 - 2² = 125563769 is a prime.

It is a super-2 number, since 2×125563773² = 31532522179991058, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125563703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378 + ... + 15851.

It is an arithmetic number, because the mean of its divisors is an integer number (20936700).

Almost surely, 2^125563773 is an apocalyptic number.

It is an amenable number.

125563773 is a deficient number, since it is larger than the sum of its proper divisors (41929827).

125563773 is a wasteful number, since it uses less digits than its factorization.

125563773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18811.

The product of its digits is 132300, while the sum is 39.

The square root of 125563773 is about 11205.5242179918. The cubic root of 125563773 is about 500.7505700587.

The spelling of 125563773 in words is "one hundred twenty-five million, five hundred sixty-three thousand, seven hundred seventy-three".