1066525554 has 16 divisors (see below), whose sum is σ = 2137151520. Its totient is φ = 354825120.

The previous prime is 1066525543. The next prime is 1066525609. The reversal of 1066525554 is 4555256601.

It is a happy number.

It is a super-2 number, since 2×1066525554² = 2274953514670013832, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167464 + ... + 173715.

It is an arithmetic number, because the mean of its divisors is an integer number (133571970).

Almost surely, 2^1066525554 is an apocalyptic number.

1066525554 is an abundant number, since it is smaller than the sum of its proper divisors (1070625966).

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

1066525554 is a wasteful number, since it uses less digits than its factorization.

1066525554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341705.

The product of its (nonzero) digits is 180000, while the sum is 39.

The square root of 1066525554 is about 32657.7028279700. The cubic root of 1066525554 is about 1021.7008512179.

The spelling of 1066525554 in words is "one billion, sixty-six million, five hundred twenty-five thousand, five hundred fifty-four".