1057554 has 24 divisors (see below), whose sum is σ = 2348892. Its totient is φ = 343680.

The previous prime is 1057541. The next prime is 1057561. The reversal of 1057554 is 4557501.

1057554 is a `hidden beast` number, since 105 + 7 + 554 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1046529 + 11025 = 1023^2 + 105^2 .

It is a super-2 number, since 2×1057554² = 2236840925832, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22 + ... + 1454.

2^1057554 is an apocalyptic number.

1057554 is an abundant number, since it is smaller than the sum of its proper divisors (1291338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1057554 is a wasteful number, since it uses less digits than its factorization.

1057554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482 (or 1479 counting only the distinct ones).

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

The square root of 1057554 is about 1028.3744454235. The cubic root of 1057554 is about 101.8827950175.

It can be divided in two parts, 105 and 7554, that multiplied together give a triangular number (793170 = T₁₂₅₉).

The spelling of 1057554 in words is "one million, fifty-seven thousand, five hundred fifty-four".