745355550 has 96 divisors (see below), whose sum is σ = 1918591488. Its totient is φ = 191358720.

The previous prime is 745355543. The next prime is 745355609. The reversal of 745355550 is 55553547.

It is a junction number, because it is equal to n+sod(n) for n = 745355499 and 745355508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 470059 + ... + 471641.

It is an arithmetic number, because the mean of its divisors is an integer number (19985328).

Almost surely, 2^745355550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 745355550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (959295744).

745355550 is an abundant number, since it is smaller than the sum of its proper divisors (1173235938).

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

745355550 is a wasteful number, since it uses less digits than its factorization.

745355550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714 (or 1709 counting only the distinct ones).

The product of its (nonzero) digits is 262500, while the sum is 39.

The square root of 745355550 is about 27301.2005230539. The cubic root of 745355550 is about 906.6809615742.

The spelling of 745355550 in words is "seven hundred forty-five million, three hundred fifty-five thousand, five hundred fifty".