1051558499 has 2 divisors, whose sum is σ = 1051558500. Its totient is φ = 1051558498.

The previous prime is 1051558489. The next prime is 1051558517. The reversal of 1051558499 is 9948551501.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1051558499 - 2⁴ = 1051558483 is a prime.

It is a super-2 number, since 2×1051558499² = 2211550553638266002, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1051558489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525779249 + 525779250.

It is an arithmetic number, because the mean of its divisors is an integer number (525779250).

Almost surely, 2^1051558499 is an apocalyptic number.

1051558499 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051558499 is an equidigital number, since it uses as much as digits as its factorization.

1051558499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324000, while the sum is 47.

The square root of 1051558499 is about 32427.7427367370. The cubic root of 1051558499 is about 1016.8989820920.

The spelling of 1051558499 in words is "one billion, fifty-one million, five hundred fifty-eight thousand, four hundred ninety-nine".