553445690 has 48 divisors (see below), whose sum is σ = 1185842592. Its totient is φ = 185332896.

The previous prime is 553445617. The next prime is 553445707. The reversal of 553445690 is 96544355.

It is a super-2 number, since 2×553445690² = 612604263559152200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7937 + ... + 34203.

It is an arithmetic number, because the mean of its divisors is an integer number (24705054).

Almost surely, 2^553445690 is an apocalyptic number.

553445690 is an abundant number, since it is smaller than the sum of its proper divisors (632396902).

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

553445690 is a wasteful number, since it uses less digits than its factorization.

553445690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26331 (or 26324 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 41.

The square root of 553445690 is about 23525.4264573461. The cubic root of 553445690 is about 821.0286960644.

The spelling of 553445690 in words is "five hundred fifty-three million, four hundred forty-five thousand, six hundred ninety".