75981053 has 4 divisors (see below), whose sum is σ = 76240668. Its totient is φ = 75721440.

The previous prime is 75981049. The next prime is 75981071. The reversal of 75981053 is 35018957.

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

It can be written as a sum of positive squares in 2 ways, for example, as 33431524 + 42549529 = 5782^2 + 6523^2 .

It is a cyclic number.

It is not a de Polignac number, because 75981053 - 2² = 75981049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75980998 and 75981016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75981023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129368 + ... + 129953.

It is an arithmetic number, because the mean of its divisors is an integer number (19060167).

Almost surely, 2^75981053 is an apocalyptic number.

It is an amenable number.

75981053 is a deficient number, since it is larger than the sum of its proper divisors (259615).

75981053 is a wasteful number, since it uses less digits than its factorization.

75981053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259614.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 75981053 is about 8716.7111343671. The cubic root of 75981053 is about 423.5471554344.

The spelling of 75981053 in words is "seventy-five million, nine hundred eighty-one thousand, fifty-three".