57284951 has 4 divisors (see below), whose sum is σ = 60654672. Its totient is φ = 53915232.

The previous prime is 57284897. The next prime is 57284957. The reversal of 57284951 is 15948275.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57284951 is a prime.

It is a super-2 number, since 2×57284951² = 6563131222144802, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57284899 and 57284908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57284957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1684835 + ... + 1684868.

It is an arithmetic number, because the mean of its divisors is an integer number (15163668).

Almost surely, 2^57284951 is an apocalyptic number.

57284951 is a deficient number, since it is larger than the sum of its proper divisors (3369721).

57284951 is a wasteful number, since it uses less digits than its factorization.

57284951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3369720.

The product of its digits is 100800, while the sum is 41.

The square root of 57284951 is about 7568.6822499032. The cubic root of 57284951 is about 385.4903540018.

The spelling of 57284951 in words is "fifty-seven million, two hundred eighty-four thousand, nine hundred fifty-one".