51057430 has 16 divisors (see below), whose sum is σ = 92368800. Its totient is φ = 20319552.

The previous prime is 51057397. The next prime is 51057451. The reversal of 51057430 is 3475015.

It is a super-2 number, since 2×51057430² = 5213722316409800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51057395 and 51057404.

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, 10839 + ... + 14818.

It is an arithmetic number, because the mean of its divisors is an integer number (5773050).

Almost surely, 2^51057430 is an apocalyptic number.

51057430 is a deficient number, since it is larger than the sum of its proper divisors (41311370).

51057430 is a wasteful number, since it uses less digits than its factorization.

51057430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25863.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 51057430 is about 7145.4482014776. The cubic root of 51057430 is about 370.9821241354.

The spelling of 51057430 in words is "fifty-one million, fifty-seven thousand, four hundred thirty".