10540557 has 8 divisors (see below), whose sum is σ = 15615680. Its totient is φ = 7027020.

The previous prime is 10540553. The next prime is 10540571. The reversal of 10540557 is 75504501.

10540557 is a `hidden beast` number, since 105 + 4 + 0 + 557 = 666.

It is not a de Polignac number, because 10540557 - 2² = 10540553 is a prime.

It is a super-2 number, since 2×10540557² = 222206683740498, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 390391 = 10540557 / (1 + 0 + 5 + 4 + 0 + 5 + 5 + 7).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10540557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10540553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195169 + ... + 195222.

It is an arithmetic number, because the mean of its divisors is an integer number (1951960).

Almost surely, 2^10540557 is an apocalyptic number.

It is an amenable number.

10540557 is a deficient number, since it is larger than the sum of its proper divisors (5075123).

10540557 is an equidigital number, since it uses as much as digits as its factorization.

10540557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390400 (or 390394 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 10540557 is about 3246.6223987400. The cubic root of 10540557 is about 219.2575315294.

The spelling of 10540557 in words is "ten million, five hundred forty thousand, five hundred fifty-seven".