75406901 has 4 divisors (see below), whose sum is σ = 75461100. Its totient is φ = 75352704.

The previous prime is 75406867. The next prime is 75406909. The reversal of 75406901 is 10960457.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10960457 = 1069 ⋅10253.

It can be written as a sum of positive squares in 2 ways, for example, as 11566801 + 63840100 = 3401^2 + 7990^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75406901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75406909) 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, 24956 + ... + 27813.

It is an arithmetic number, because the mean of its divisors is an integer number (18865275).

Almost surely, 2^75406901 is an apocalyptic number.

It is an amenable number.

75406901 is a deficient number, since it is larger than the sum of its proper divisors (54199).

75406901 is a wasteful number, since it uses less digits than its factorization.

75406901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54198.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 75406901 is about 8683.7147005184. The cubic root of 75406901 is about 422.4776100082.

It can be divided in two parts, 7540 and 6901, that added together give a palindrome (14441).

The spelling of 75406901 in words is "seventy-five million, four hundred six thousand, nine hundred one".