125553031 has 4 divisors (see below), whose sum is σ = 125606392. Its totient is φ = 125499672.

The previous prime is 125553013. The next prime is 125553049. The reversal of 125553031 is 130355521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130355521 = 1061 ⋅122861.

It is an interprime number because it is at equal distance from previous prime (125553013) and next prime (125553049).

It is a cyclic number.

It is not a de Polignac number, because 125553031 - 2⁹ = 125552519 is a prime.

It is a super-2 number, since 2×125553031² = 31527127186573922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125552987 and 125553005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125553011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22980 + ... + 27913.

It is an arithmetic number, because the mean of its divisors is an integer number (31401598).

Almost surely, 2^125553031 is an apocalyptic number.

125553031 is a deficient number, since it is larger than the sum of its proper divisors (53361).

125553031 is an equidigital number, since it uses as much as digits as its factorization.

125553031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53360.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 125553031 is about 11205.0448905839. The cubic root of 125553031 is about 500.7362898889.

The spelling of 125553031 in words is "one hundred twenty-five million, five hundred fifty-three thousand, thirty-one".