125553797 has 4 divisors (see below), whose sum is σ = 125913900. Its totient is φ = 125193696.

The previous prime is 125553781. The next prime is 125553821. The reversal of 125553797 is 797355521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67092481 + 58461316 = 8191^2 + 7646^2 .

It is a cyclic number.

It is not a de Polignac number, because 125553797 - 2⁴ = 125553781 is a prime.

It is a super-2 number, since 2×125553797² = 31527511882234418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125553707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179528 + ... + 180225.

It is an arithmetic number, because the mean of its divisors is an integer number (31478475).

Almost surely, 2^125553797 is an apocalyptic number.

It is an amenable number.

125553797 is a deficient number, since it is larger than the sum of its proper divisors (360103).

125553797 is an equidigital number, since it uses as much as digits as its factorization.

125553797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360102.

The product of its digits is 330750, while the sum is 44.

The square root of 125553797 is about 11205.0790715639. The cubic root of 125553797 is about 500.7373082188.

The spelling of 125553797 in words is "one hundred twenty-five million, five hundred fifty-three thousand, seven hundred ninety-seven".