51550603 has 8 divisors (see below), whose sum is σ = 57430800. Its totient is φ = 45943968.

The previous prime is 51550561. The next prime is 51550621. The reversal of 51550603 is 30605515.

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 51550603 - 2⁹ = 51550091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51550633) 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, 67993 + ... + 68746.

It is an arithmetic number, because the mean of its divisors is an integer number (7178850).

Almost surely, 2^51550603 is an apocalyptic number.

51550603 is a deficient number, since it is larger than the sum of its proper divisors (5880197).

51550603 is a wasteful number, since it uses less digits than its factorization.

51550603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136781.

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

The square root of 51550603 is about 7179.8748596337. The cubic root of 51550603 is about 372.1727600654.

The spelling of 51550603 in words is "fifty-one million, five hundred fifty thousand, six hundred three".