51055603 has 8 divisors (see below), whose sum is σ = 54501120. Its totient is φ = 47685960.

The previous prime is 51055553. The next prime is 51055643. The reversal of 51055603 is 30655015.

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 51055603 - 2²¹ = 48958451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51055643) 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, 17575 + ... + 20272.

It is an arithmetic number, because the mean of its divisors is an integer number (6812640).

Almost surely, 2^51055603 is an apocalyptic number.

51055603 is a deficient number, since it is larger than the sum of its proper divisors (3445517).

51055603 is a wasteful number, since it uses less digits than its factorization.

51055603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37937.

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

The square root of 51055603 is about 7145.3203567090. The cubic root of 51055603 is about 370.9776991025.

The spelling of 51055603 in words is "fifty-one million, fifty-five thousand, six hundred three".