2525433021 has 6 divisors (see below), whose sum is σ = 3647847710. Its totient is φ = 1683622008.

The previous prime is 2525432993. The next prime is 2525433059. The reversal of 2525433021 is 1203345252.

It is a happy number.

2525433021 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2098556100 + 426876921 = 45810^2 + 20661^2 .

It is not a de Polignac number, because 2525433021 - 2¹⁴ = 2525416637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2525433061) 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, 140301826 + ... + 140301843.

Almost surely, 2^2525433021 is an apocalyptic number.

It is an amenable number.

2525433021 is a deficient number, since it is larger than the sum of its proper divisors (1122414689).

2525433021 is a wasteful number, since it uses less digits than its factorization.

2525433021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280603675 (or 280603672 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 2525433021 is about 50253.6866408824. The cubic root of 2525433021 is about 1361.7956782388.

Adding to 2525433021 its reverse (1203345252), we get a palindrome (3728778273).

The spelling of 2525433021 in words is "two billion, five hundred twenty-five million, four hundred thirty-three thousand, twenty-one".