2522520407 has 4 divisors (see below), whose sum is σ = 2751840456. Its totient is φ = 2293200360.

The previous prime is 2522520391. The next prime is 2522520419. The reversal of 2522520407 is 7040252252.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2522520407 - 2⁴ = 2522520391 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2522520407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2522520457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114660008 + ... + 114660029.

It is an arithmetic number, because the mean of its divisors is an integer number (687960114).

Almost surely, 2^2522520407 is an apocalyptic number.

2522520407 is a deficient number, since it is larger than the sum of its proper divisors (229320049).

2522520407 is a wasteful number, since it uses less digits than its factorization.

2522520407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229320048.

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 2522520407 is about 50224.6991728174. The cubic root of 2522520407 is about 1361.2719514258.

Adding to 2522520407 its reverse (7040252252), we get a palindrome (9562772659).

The spelling of 2522520407 in words is "two billion, five hundred twenty-two million, five hundred twenty thousand, four hundred seven".