75253642 has 16 divisors (see below), whose sum is σ = 119628000. Its totient is φ = 35404560.

The previous prime is 75253621. The next prime is 75253643. The reversal of 75253642 is 24635257.

It is a super-2 number, since 2×75253642² = 11326221268528328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 75253598 and 75253607.

It is not an unprimeable number, because it can be changed into a prime (75253643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 984 + ... + 12307.

It is an arithmetic number, because the mean of its divisors is an integer number (7476750).

Almost surely, 2^75253642 is an apocalyptic number.

75253642 is a deficient number, since it is larger than the sum of its proper divisors (44374358).

75253642 is a wasteful number, since it uses less digits than its factorization.

75253642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13461.

The product of its digits is 50400, while the sum is 34.

The square root of 75253642 is about 8674.8857052989. The cubic root of 75253642 is about 422.1911976229.

Adding to 75253642 its reverse (24635257), we get a palindrome (99888899).

The spelling of 75253642 in words is "seventy-five million, two hundred fifty-three thousand, six hundred forty-two".