1506650561 has 8 divisors (see below), whose sum is σ = 1674887424. Its totient is φ = 1345890960.

The previous prime is 1506650539. The next prime is 1506650603. The reversal of 1506650561 is 1650566051.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1506650561 - 2¹⁸ = 1506388417 is a prime.

It is a super-2 number, since 2×1506650561² = 4539991825923229442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1506650521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1868891 + ... + 1869696.

It is an arithmetic number, because the mean of its divisors is an integer number (209360928).

Almost surely, 2^1506650561 is an apocalyptic number.

It is an amenable number.

1506650561 is a deficient number, since it is larger than the sum of its proper divisors (168236863).

1506650561 is a wasteful number, since it uses less digits than its factorization.

1506650561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3738631.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 1506650561 is about 38815.5968780592. The cubic root of 1506650561 is about 1146.4035243912.

The spelling of 1506650561 in words is "one billion, five hundred six million, six hundred fifty thousand, five hundred sixty-one".