51577142 has 8 divisors (see below), whose sum is σ = 79011936. Its totient is φ = 25239832.

The previous prime is 51577129. The next prime is 51577157. The reversal of 51577142 is 24177515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 51577099 and 51577108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274253 + ... + 274440.

It is an arithmetic number, because the mean of its divisors is an integer number (9876492).

Almost surely, 2^51577142 is an apocalyptic number.

51577142 is a deficient number, since it is larger than the sum of its proper divisors (27434794).

51577142 is a wasteful number, since it uses less digits than its factorization.

51577142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548742.

The product of its digits is 9800, while the sum is 32.

The square root of 51577142 is about 7181.7227738197. The cubic root of 51577142 is about 372.2366157582.

The spelling of 51577142 in words is "fifty-one million, five hundred seventy-seven thousand, one hundred forty-two".