2523144542 has 4 divisors (see below), whose sum is σ = 3784716816. Its totient is φ = 1261572270.

The previous prime is 2523144523. The next prime is 2523144563. The reversal of 2523144542 is 2454413252.

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

It is a junction number, because it is equal to n+sod(n) for n = 2523144499 and 2523144508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630786134 + ... + 630786137.

It is an arithmetic number, because the mean of its divisors is an integer number (946179204).

Almost surely, 2^2523144542 is an apocalyptic number.

2523144542 is a deficient number, since it is larger than the sum of its proper divisors (1261572274).

2523144542 is a wasteful number, since it uses less digits than its factorization.

2523144542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261572273.

The product of its digits is 38400, while the sum is 32.

The square root of 2523144542 is about 50230.9122154874. The cubic root of 2523144542 is about 1361.3842131416.

Adding to 2523144542 its reverse (2454413252), we get a palindrome (4977557794).

The spelling of 2523144542 in words is "two billion, five hundred twenty-three million, one hundred forty-four thousand, five hundred forty-two".