10023557 has 16 divisors (see below), whose sum is σ = 11076912. Its totient is φ = 9031680.

The previous prime is 10023553. The next prime is 10023593. The reversal of 10023557 is 75532001.

It is a Cunningham number, because it is equal to 3166²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 481636 + 9541921 = 694^2 + 3089^2 .

It is a cyclic number.

It is not a de Polignac number, because 10023557 - 2² = 10023553 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10023553) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 50783 + ... + 50979.

It is an arithmetic number, because the mean of its divisors is an integer number (692307).

Almost surely, 2^10023557 is an apocalyptic number.

10023557 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

10023557 is a deficient number, since it is larger than the sum of its proper divisors (1053355).

10023557 is a wasteful number, since it uses less digits than its factorization.

10023557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 10023557 is about 3166.0001579280. Note that the first 3 decimals coincide. The cubic root of 10023557 is about 215.6125097295.

Adding to 10023557 its reverse (75532001), we get a palindrome (85555558).

It can be divided in two parts, 10023 and 557, that multiplied together give a triangular number (5582811 = T₃₃₄₁).

The spelling of 10023557 in words is "ten million, twenty-three thousand, five hundred fifty-seven".