2520642435 has 16 divisors (see below), whose sum is σ = 4034313216. Its totient is φ = 1343914208.

The previous prime is 2520642409. The next prime is 2520642437. The reversal of 2520642435 is 5342460252.

It is a happy number.

It is a Cunningham number, because it is equal to 50206²-1.

It is a cyclic number.

It is not a de Polignac number, because 2520642435 - 2¹¹ = 2520640387 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2520642396 and 2520642405.

It is not an unprimeable number, because it can be changed into a prime (2520642437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25102 + ... + 75308.

It is an arithmetic number, because the mean of its divisors is an integer number (252144576).

Almost surely, 2^2520642435 is an apocalyptic number.

2520642435 is a deficient number, since it is larger than the sum of its proper divisors (1513670781).

2520642435 is a wasteful number, since it uses less digits than its factorization.

2520642435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53562.

The product of its (nonzero) digits is 57600, while the sum is 33.

The square root of 2520642435 is about 50205.9999900410. Note that the first 5 decimals coincide. The cubic root of 2520642435 is about 1360.9340532308.

The spelling of 2520642435 in words is "two billion, five hundred twenty million, six hundred forty-two thousand, four hundred thirty-five".