1025251235 has 4 divisors (see below), whose sum is σ = 1230301488. Its totient is φ = 820200984.

The previous prime is 1025251187. The next prime is 1025251247. The reversal of 1025251235 is 5321525201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1025251235 - 2¹⁰ = 1025250211 is a prime.

It is a super-2 number, since 2×1025251235² = 2102280189738050450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102525119 + ... + 102525128.

It is an arithmetic number, because the mean of its divisors is an integer number (307575372).

Almost surely, 2^1025251235 is an apocalyptic number.

1025251235 is a deficient number, since it is larger than the sum of its proper divisors (205050253).

1025251235 is an equidigital number, since it uses as much as digits as its factorization.

1025251235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205050252.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 1025251235 is about 32019.5445782728. The cubic root of 1025251235 is about 1008.3472085759.

Adding to 1025251235 its reverse (5321525201), we get a palindrome (6346776436).

The spelling of 1025251235 in words is "one billion, twenty-five million, two hundred fifty-one thousand, two hundred thirty-five".