1025681562 has 32 divisors (see below), whose sum is σ = 2352821760. Its totient is φ = 330864480.

The previous prime is 1025681561. The next prime is 1025681639. The reversal of 1025681562 is 2651865201.

1025681562 is a `hidden beast` number, since 10 + 2 + 5 + 6 + 81 + 562 = 666.

It is not an unprimeable number, because it can be changed into a prime (1025681561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 304683 + ... + 308030.

It is an arithmetic number, because the mean of its divisors is an integer number (73525680).

Almost surely, 2^1025681562 is an apocalyptic number.

1025681562 is an abundant number, since it is smaller than the sum of its proper divisors (1327140198).

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

1025681562 is a wasteful number, since it uses less digits than its factorization.

1025681562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612755 (or 612749 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 1025681562 is about 32026.2636284659. The cubic root of 1025681562 is about 1008.4882661428.

The spelling of 1025681562 in words is "one billion, twenty-five million, six hundred eighty-one thousand, five hundred sixty-two".