662654057 has 4 divisors (see below), whose sum is σ = 713627460. Its totient is φ = 611680656.

The previous prime is 662654023. The next prime is 662654059. The reversal of 662654057 is 750456266.

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 372837481 + 289816576 = 19309^2 + 17024^2 .

It is a cyclic number.

It is not a de Polignac number, because 662654057 - 2⁸ = 662653801 is a prime.

It is a super-2 number, since 2×662654057² = 878220798517118498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (662654059) 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, 25486682 + ... + 25486707.

It is an arithmetic number, because the mean of its divisors is an integer number (178406865).

Almost surely, 2^662654057 is an apocalyptic number.

It is an amenable number.

662654057 is a deficient number, since it is larger than the sum of its proper divisors (50973403).

662654057 is a wasteful number, since it uses less digits than its factorization.

662654057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50973402.

The product of its (nonzero) digits is 302400, while the sum is 41.

The square root of 662654057 is about 25742.0678462318. The cubic root of 662654057 is about 871.8242678343.

The spelling of 662654057 in words is "six hundred sixty-two million, six hundred fifty-four thousand, fifty-seven".