2520138533 has 8 divisors (see below), whose sum is σ = 2774465760. Its totient is φ = 2270015280.

The previous prime is 2520138529. The next prime is 2520138553. The reversal of 2520138533 is 3358310252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2520138533 - 2² = 2520138529 is a prime.

It is a super-2 number, since 2×2520138533² = 12702196451022784178, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2520138533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520138503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1049735 + ... + 1052132.

It is an arithmetic number, because the mean of its divisors is an integer number (346808220).

Almost surely, 2^2520138533 is an apocalyptic number.

It is an amenable number.

2520138533 is a deficient number, since it is larger than the sum of its proper divisors (254327227).

2520138533 is a wasteful number, since it uses less digits than its factorization.

2520138533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101987.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 2520138533 is about 50200.9813947895. The cubic root of 2520138533 is about 1360.8433590113.

Adding to 2520138533 its reverse (3358310252), we get a palindrome (5878448785).

The spelling of 2520138533 in words is "two billion, five hundred twenty million, one hundred thirty-eight thousand, five hundred thirty-three".