1025156533 has 4 divisors (see below), whose sum is σ = 1079112160. Its totient is φ = 971200908.

The previous prime is 1025156519. The next prime is 1025156537. The reversal of 1025156533 is 3356515201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3356515201 = 13 ⋅258193477.

It is a cyclic number.

It is not a de Polignac number, because 1025156533 - 2⁵ = 1025156501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1025156495 and 1025156504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025156537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26977785 + ... + 26977822.

It is an arithmetic number, because the mean of its divisors is an integer number (269778040).

Almost surely, 2^1025156533 is an apocalyptic number.

It is an amenable number.

1025156533 is a deficient number, since it is larger than the sum of its proper divisors (53955627).

1025156533 is an equidigital number, since it uses as much as digits as its factorization.

1025156533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53955626.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 1025156533 is about 32018.0657285852. The cubic root of 1025156533 is about 1008.3161607591.

The spelling of 1025156533 in words is "one billion, twenty-five million, one hundred fifty-six thousand, five hundred thirty-three".