745225566 has 32 divisors (see below), whose sum is σ = 1580106528. Its totient is φ = 233502720.

The previous prime is 745225541. The next prime is 745225567. The reversal of 745225566 is 665522547.

It is a super-2 number, since 2×745225566² = 1110722288440040712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745225567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85716 + ... + 94008.

It is an arithmetic number, because the mean of its divisors is an integer number (49378329).

Almost surely, 2^745225566 is an apocalyptic number.

745225566 is an abundant number, since it is smaller than the sum of its proper divisors (834880962).

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

745225566 is a wasteful number, since it uses less digits than its factorization.

745225566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9196.

The product of its digits is 504000, while the sum is 42.

The square root of 745225566 is about 27298.8198646022. The cubic root of 745225566 is about 906.6282525596.

The spelling of 745225566 in words is "seven hundred forty-five million, two hundred twenty-five thousand, five hundred sixty-six".