61125603 has 48 divisors (see below), whose sum is σ = 107387136. Its totient is φ = 30041280.

The previous prime is 61125587. The next prime is 61125607. The reversal of 61125603 is 30652116.

It is not a de Polignac number, because 61125603 - 2⁴ = 61125587 is a prime.

It is a super-2 number, since 2×61125603² = 7472678684227218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61125607) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 83025 + ... + 83757.

It is an arithmetic number, because the mean of its divisors is an integer number (2237232).

Almost surely, 2^61125603 is an apocalyptic number.

61125603 is a deficient number, since it is larger than the sum of its proper divisors (46261533).

61125603 is a wasteful number, since it uses less digits than its factorization.

61125603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792 (or 773 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 61125603 is about 7818.2864490884. The cubic root of 61125603 is about 393.9197166079.

Adding to 61125603 its reverse (30652116), we get a palindrome (91777719).

The spelling of 61125603 in words is "sixty-one million, one hundred twenty-five thousand, six hundred three".