1025545730 has 32 divisors (see below), whose sum is σ = 2025476928. Its totient is φ = 370763200.

The previous prime is 1025545709. The next prime is 1025545747. The reversal of 1025545730 is 375455201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7916 + ... + 45975.

It is an arithmetic number, because the mean of its divisors is an integer number (63296154).

Almost surely, 2^1025545730 is an apocalyptic number.

1025545730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1025545730 is a deficient number, since it is larger than the sum of its proper divisors (999931198).

1025545730 is a wasteful number, since it uses less digits than its factorization.

1025545730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54082.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 1025545730 is about 32024.1429237380. The cubic root of 1025545730 is about 1008.4437458191.

The spelling of 1025545730 in words is "one billion, twenty-five million, five hundred forty-five thousand, seven hundred thirty".