51090054 has 16 divisors (see below), whose sum is σ = 105703920. Its totient is φ = 16442720.

The previous prime is 51090029. The next prime is 51090079. The reversal of 51090054 is 45009015.

It is an interprime number because it is at equal distance from previous prime (51090029) and next prime (51090079).

It is a super-2 number, since 2×51090054² = 5220387235445832, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 146637 + ... + 146984.

It is an arithmetic number, because the mean of its divisors is an integer number (6606495).

Almost surely, 2^51090054 is an apocalyptic number.

51090054 is an abundant number, since it is smaller than the sum of its proper divisors (54613866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51090054 is a wasteful number, since it uses less digits than its factorization.

51090054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293655.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 51090054 is about 7147.7306888270. The cubic root of 51090054 is about 371.0611223925.

Adding to 51090054 its reverse (45009015), we get a palindrome (96099069).

The spelling of 51090054 in words is "fifty-one million, ninety thousand, fifty-four".