1025565042 has 16 divisors (see below), whose sum is σ = 2052290592. Its totient is φ = 341661600.

The previous prime is 1025565029. The next prime is 1025565043. The reversal of 1025565042 is 2405655201.

It is not an unprimeable number, because it can be changed into a prime (1025565043) 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, 36648 + ... + 58259.

It is an arithmetic number, because the mean of its divisors is an integer number (128268162).

Almost surely, 2^1025565042 is an apocalyptic number.

1025565042 is an abundant number, since it is smaller than the sum of its proper divisors (1026725550).

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

1025565042 is a wasteful number, since it uses less digits than its factorization.

1025565042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96713.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 1025565042 is about 32024.4444448300. Note that the first 6 decimals coincide. The cubic root of 1025565042 is about 1008.4500757638.

The spelling of 1025565042 in words is "one billion, twenty-five million, five hundred sixty-five thousand, forty-two".