51120003 has 32 divisors (see below), whose sum is σ = 79252992. Its totient is φ = 28966400.

The previous prime is 51119987. The next prime is 51120029. The reversal of 51120003 is 30002115.

It is a cyclic number.

It is not a de Polignac number, because 51120003 - 2⁴ = 51119987 is a prime.

It is a super-2 number, since 2×51120003² = 5226509413440018, which contains 22 as substring.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (51120403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164218 + ... + 164528.

It is an arithmetic number, because the mean of its divisors is an integer number (2476656).

Almost surely, 2^51120003 is an apocalyptic number.

51120003 is a deficient number, since it is larger than the sum of its proper divisors (28132989).

51120003 is a wasteful number, since it uses less digits than its factorization.

51120003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 51120003 is about 7149.8253824831. The cubic root of 51120003 is about 371.1336135979.

Adding to 51120003 its reverse (30002115), we get a palindrome (81122118).

It can be divided in two parts, 5112000 and 3, that added together give a triangular number (5112003 = T₃₁₉₇).

The spelling of 51120003 in words is "fifty-one million, one hundred twenty thousand, three".