1025512533 has 6 divisors (see below), whose sum is σ = 1481295894. Its totient is φ = 683675016.

The previous prime is 1025512513. The next prime is 1025512549. The reversal of 1025512533 is 3352155201.

It is a happy number.

1025512533 is a `hidden beast` number, since 102 + 551 + 2 + 5 + 3 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 533471409 + 492041124 = 23097^2 + 22182^2 .

It is not a de Polignac number, because 1025512533 - 2⁸ = 1025512277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1025512497 and 1025512506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025512513) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56972910 + ... + 56972927.

It is an arithmetic number, because the mean of its divisors is an integer number (246882649).

Almost surely, 2^1025512533 is an apocalyptic number.

It is an amenable number.

1025512533 is a deficient number, since it is larger than the sum of its proper divisors (455783361).

1025512533 is a wasteful number, since it uses less digits than its factorization.

1025512533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113945843 (or 113945840 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 1025512533 is about 32023.6246074675. The cubic root of 1025512533 is about 1008.4328645659.

Adding to 1025512533 its reverse (3352155201), we get a palindrome (4377667734).

The spelling of 1025512533 in words is "one billion, twenty-five million, five hundred twelve thousand, five hundred thirty-three".