53125642 has 8 divisors (see below), whose sum is σ = 79945632. Its totient is φ = 26477100.

The previous prime is 53125621. The next prime is 53125669. The reversal of 53125642 is 24652135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 53125642.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42084 + ... + 43327.

It is an arithmetic number, because the mean of its divisors is an integer number (9993204).

Almost surely, 2^53125642 is an apocalyptic number.

53125642 is a deficient number, since it is larger than the sum of its proper divisors (26819990).

53125642 is a wasteful number, since it uses less digits than its factorization.

53125642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85724.

The product of its digits is 7200, while the sum is 28.

The square root of 53125642 is about 7288.7339092602. The cubic root of 53125642 is about 375.9251633541.

Adding to 53125642 its reverse (24652135), we get a palindrome (77777777).

The spelling of 53125642 in words is "fifty-three million, one hundred twenty-five thousand, six hundred forty-two".