2520215442 has 24 divisors (see below), whose sum is σ = 5747860560. Its totient is φ = 795857400.

The previous prime is 2520215441. The next prime is 2520215443. The reversal of 2520215442 is 2445120252.

2520215442 is a `hidden beast` number, since 2 + 5 + 2 + 0 + 215 + 442 = 666.

It is an interprime number because it is at equal distance from previous prime (2520215441) and next prime (2520215443).

It is not an unprimeable number, because it can be changed into a prime (2520215441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3684184 + ... + 3684867.

It is an arithmetic number, because the mean of its divisors is an integer number (239494190).

Almost surely, 2^2520215442 is an apocalyptic number.

2520215442 is an abundant number, since it is smaller than the sum of its proper divisors (3227645118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2520215442 is a wasteful number, since it uses less digits than its factorization.

2520215442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7369078 (or 7369075 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 2520215442 is about 50201.7473998665. The cubic root of 2520215442 is about 1360.8572021706.

Adding to 2520215442 its reverse (2445120252), we get a palindrome (4965335694).

The spelling of 2520215442 in words is "two billion, five hundred twenty million, two hundred fifteen thousand, four hundred forty-two".