1053551 has 2 divisors, whose sum is σ = 1053552. Its totient is φ = 1053550.

The previous prime is 1053539. The next prime is 1053557. The reversal of 1053551 is 1553501.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1053551 - 2⁶ = 1053487 is a prime.

It is a super-2 number, since 2×1053551² = 2219939419202, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1053557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526775 + 526776.

It is an arithmetic number, because the mean of its divisors is an integer number (526776).

2^1053551 is an apocalyptic number.

1053551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1053551 is an equidigital number, since it uses as much as digits as its factorization.

1053551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 1053551 is about 1026.4263246819. The cubic root of 1053551 is about 101.7540852817.

The spelling of 1053551 in words is "one million, fifty-three thousand, five hundred fifty-one".