5125621142 has 16 divisors (see below), whose sum is σ = 8175643632. Its totient is φ = 2401701120.

The previous prime is 5125621133. The next prime is 5125621157. The reversal of 5125621142 is 2411265215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315584 + ... + 331427.

It is an arithmetic number, because the mean of its divisors is an integer number (510977727).

Almost surely, 2^5125621142 is an apocalyptic number.

5125621142 is a deficient number, since it is larger than the sum of its proper divisors (3050022490).

5125621142 is a wasteful number, since it uses less digits than its factorization.

5125621142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647263.

The product of its digits is 4800, while the sum is 29.

The square root of 5125621142 is about 71593.4434288504. The cubic root of 5125621142 is about 1724.1782704688.

Adding to 5125621142 its reverse (2411265215), we get a palindrome (7536886357).

The spelling of 5125621142 in words is "five billion, one hundred twenty-five million, six hundred twenty-one thousand, one hundred forty-two".