654271560 has 128 divisors (see below), whose sum is σ = 2193609600. Its totient is φ = 173456640.

The previous prime is 654271559. The next prime is 654271561. The reversal of 654271560 is 65172456.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (654271559) and next prime (654271561).

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

It is not an unprimeable number, because it can be changed into a prime (654271561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 193807 + ... + 197153.

It is an arithmetic number, because the mean of its divisors is an integer number (17137575).

Almost surely, 2^654271560 is an apocalyptic number.

654271560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 654271560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1096804800).

654271560 is an abundant number, since it is smaller than the sum of its proper divisors (1539338040).

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

654271560 is a wasteful number, since it uses less digits than its factorization.

654271560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3548 (or 3538 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 654271560 is about 25578.7325721976. The cubic root of 654271560 is about 868.1324983375.

The spelling of 654271560 in words is "six hundred fifty-four million, two hundred seventy-one thousand, five hundred sixty".