125553735 has 24 divisors (see below), whose sum is σ = 219561264. Its totient is φ = 66366720.

The previous prime is 125553733. The next prime is 125553737. The reversal of 125553735 is 537355521.

It is an interprime number because it is at equal distance from previous prime (125553733) and next prime (125553737).

It is not a de Polignac number, because 125553735 - 2¹ = 125553733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125553735.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125553733) 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 23 ways as a sum of consecutive naturals, for example, 7261 + ... + 17430.

It is an arithmetic number, because the mean of its divisors is an integer number (9148386).

Almost surely, 2^125553735 is an apocalyptic number.

125553735 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125553735 is a deficient number, since it is larger than the sum of its proper divisors (94007529).

125553735 is a wasteful number, since it uses less digits than its factorization.

125553735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24815 (or 24812 counting only the distinct ones).

The product of its digits is 78750, while the sum is 36.

The square root of 125553735 is about 11205.0763049611. The cubic root of 125553735 is about 500.7372257953.

It can be divided in two parts, 12555 and 3735, that added together give a triangular number (16290 = T₁₈₀).

The spelling of 125553735 in words is "one hundred twenty-five million, five hundred fifty-three thousand, seven hundred thirty-five".