75825642 has 16 divisors (see below), whose sum is σ = 153915552. Its totient is φ = 24897840.

The previous prime is 75825619. The next prime is 75825677. The reversal of 75825642 is 24652857.

It is a self number, because there is not a number n which added to its sum of digits gives 75825642.

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, 93909 + ... + 94712.

It is an arithmetic number, because the mean of its divisors is an integer number (9619722).

Almost surely, 2^75825642 is an apocalyptic number.

75825642 is an abundant number, since it is smaller than the sum of its proper divisors (78089910).

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

75825642 is a wasteful number, since it uses less digits than its factorization.

75825642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188693.

The product of its digits is 134400, while the sum is 39.

The square root of 75825642 is about 8707.7920278335. The cubic root of 75825642 is about 423.2581850750.

It can be divided in two parts, 75825 and 642, that added together give a palindrome (76467).

The spelling of 75825642 in words is "seventy-five million, eight hundred twenty-five thousand, six hundred forty-two".