1561150425 has 12 divisors (see below), whose sum is σ = 2581102160. Its totient is φ = 832613520.

The previous prime is 1561150411. The next prime is 1561150427. The reversal of 1561150425 is 5240511651.

It is not a de Polignac number, because 1561150425 - 2⁸ = 1561150169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1561150392 and 1561150401.

It is not an unprimeable number, because it can be changed into a prime (1561150427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10407595 + ... + 10407744.

Almost surely, 2^1561150425 is an apocalyptic number.

1561150425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1561150425 is a deficient number, since it is larger than the sum of its proper divisors (1019951735).

1561150425 is a wasteful number, since it uses less digits than its factorization.

1561150425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20815352 (or 20815347 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 30.

The square root of 1561150425 is about 39511.3961408604. The cubic root of 1561150425 is about 1160.0630229829.

The spelling of 1561150425 in words is "one billion, five hundred sixty-one million, one hundred fifty thousand, four hundred twenty-five".