57001969 has 4 divisors (see below), whose sum is σ = 60355044. Its totient is φ = 53648896.

The previous prime is 57001949. The next prime is 57002039. The reversal of 57001969 is 96910075.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18809569 + 38192400 = 4337^2 + 6180^2 .

It is a cyclic number.

It is not a de Polignac number, because 57001969 - 2⁹ = 57001457 is a prime.

It is a super-2 number, since 2×57001969² = 6498448939753922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57001909) 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, 1676512 + ... + 1676545.

It is an arithmetic number, because the mean of its divisors is an integer number (15088761).

Almost surely, 2^57001969 is an apocalyptic number.

It is an amenable number.

57001969 is a deficient number, since it is larger than the sum of its proper divisors (3353075).

57001969 is a wasteful number, since it uses less digits than its factorization.

57001969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3353074.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 57001969 is about 7549.9648343552. The cubic root of 57001969 is about 384.8545444794.

It can be divided in two parts, 57001 and 969, that added together give a triangular number (57970 = T₃₄₀).

The spelling of 57001969 in words is "fifty-seven million, one thousand, nine hundred sixty-nine".