2521353042 has 32 divisors (see below), whose sum is σ = 6034008960. Its totient is φ = 775800720.

The previous prime is 2521353013. The next prime is 2521353071. The reversal of 2521353042 is 2403531252.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2521353013) and next prime (2521353071).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 2521352997 and 2521353015.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1795134 + ... + 1796537.

It is an arithmetic number, because the mean of its divisors is an integer number (188562780).

Almost surely, 2^2521353042 is an apocalyptic number.

2521353042 is an abundant number, since it is smaller than the sum of its proper divisors (3512655918).

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

2521353042 is a wasteful number, since it uses less digits than its factorization.

2521353042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3591695 (or 3591689 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 2521353042 is about 50213.0764044586. The cubic root of 2521353042 is about 1361.0619304717.

Adding to 2521353042 its reverse (2403531252), we get a palindrome (4924884294).

The spelling of 2521353042 in words is "two billion, five hundred twenty-one million, three hundred fifty-three thousand, forty-two".