2520503001 has 40 divisors (see below), whose sum is σ = 3936778560. Its totient is φ = 1604056608.

The previous prime is 2520502987. The next prime is 2520503017. The reversal of 2520503001 is 1003050252.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-2520503001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2520501001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1226691 + ... + 1228743.

It is an arithmetic number, because the mean of its divisors is an integer number (98419464).

Almost surely, 2^2520503001 is an apocalyptic number.

It is an amenable number.

2520503001 is a deficient number, since it is larger than the sum of its proper divisors (1416275559).

2520503001 is a wasteful number, since it uses less digits than its factorization.

2520503001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2747 (or 2738 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 2520503001 is about 50204.6113519465. The cubic root of 2520503001 is about 1360.9089585730.

Adding to 2520503001 its reverse (1003050252), we get a palindrome (3523553253).

It can be divided in two parts, 2520 and 503001, that added together give a square (505521 = 711²).

The spelling of 2520503001 in words is "two billion, five hundred twenty million, five hundred three thousand, one".