726505560 has 96 divisors (see below), whose sum is σ = 2575806480. Its totient is φ = 176121600.

The previous prime is 726505541. The next prime is 726505579. The reversal of 726505560 is 65505627.

It is an interprime number because it is at equal distance from previous prime (726505541) and next prime (726505579).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 87771 + ... + 95690.

Almost surely, 2^726505560 is an apocalyptic number.

It is an amenable number.

726505560 is an abundant number, since it is smaller than the sum of its proper divisors (1849300920).

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

726505560 is a wasteful number, since it uses less digits than its factorization.

726505560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183489 (or 183482 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The square root of 726505560 is about 26953.7670836564. The cubic root of 726505560 is about 898.9723084282.

It can be divided in two parts, 72650 and 5560, that added together give a triangular number (78210 = T₃₉₅).

The spelling of 726505560 in words is "seven hundred twenty-six million, five hundred five thousand, five hundred sixty".