1550560642 has 4 divisors (see below), whose sum is σ = 2325840966. Its totient is φ = 775280320.

The previous prime is 1550560639. The next prime is 1550560727. The reversal of 1550560642 is 2460650551.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 804232881 + 746327761 = 28359^2 + 27319^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1550560598 and 1550560607.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387640159 + ... + 387640162.

Almost surely, 2^1550560642 is an apocalyptic number.

1550560642 is a deficient number, since it is larger than the sum of its proper divisors (775280324).

1550560642 is an equidigital number, since it uses as much as digits as its factorization.

1550560642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775280323.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 1550560642 is about 39377.1588868471. The cubic root of 1550560642 is about 1157.4340433288.

The spelling of 1550560642 in words is "one billion, five hundred fifty million, five hundred sixty thousand, six hundred forty-two".