51490053 has 16 divisors (see below), whose sum is σ = 76392960. Its totient is φ = 34276608.

The previous prime is 51490037. The next prime is 51490063. The reversal of 51490053 is 35009415.

It is not a de Polignac number, because 51490053 - 2⁴ = 51490037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51489999 and 51490026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51490013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32076 + ... + 33642.

It is an arithmetic number, because the mean of its divisors is an integer number (4774560).

Almost surely, 2^51490053 is an apocalyptic number.

It is an amenable number.

51490053 is a deficient number, since it is larger than the sum of its proper divisors (24902907).

51490053 is a wasteful number, since it uses less digits than its factorization.

51490053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2793 (or 2787 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 51490053 is about 7175.6569734067. The cubic root of 51490053 is about 372.0269881565.

Adding to 51490053 its reverse (35009415), we get a palindrome (86499468).

The spelling of 51490053 in words is "fifty-one million, four hundred ninety thousand, fifty-three".