1025251539 has 16 divisors (see below), whose sum is σ = 1475460000. Its totient is φ = 629508096.

The previous prime is 1025251517. The next prime is 1025251541. The reversal of 1025251539 is 9351525201.

1025251539 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1025251539 - 2⁷ = 1025251411 is a prime.

It is a super-2 number, since 2×1025251539² = 2102281436443737042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1025251559) 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, 11764 + ... + 46785.

It is an arithmetic number, because the mean of its divisors is an integer number (92216250).

Almost surely, 2^1025251539 is an apocalyptic number.

1025251539 is a deficient number, since it is larger than the sum of its proper divisors (450208461).

1025251539 is a wasteful number, since it uses less digits than its factorization.

1025251539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59014.

The product of its (nonzero) digits is 13500, while the sum is 33.

The square root of 1025251539 is about 32019.5493253731. The cubic root of 1025251539 is about 1008.3473082385.

The spelling of 1025251539 in words is "one billion, twenty-five million, two hundred fifty-one thousand, five hundred thirty-nine".