75220737 has 8 divisors (see below), whose sum is σ = 101707200. Its totient is φ = 49440720.

The previous prime is 75220721. The next prime is 75220777. The reversal of 75220737 is 73702257.

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

It is not a de Polignac number, because 75220737 - 2⁴ = 75220721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75220698 and 75220707.

It is not an unprimeable number, because it can be changed into a prime (75220777) 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, 176362 + ... + 176787.

It is an arithmetic number, because the mean of its divisors is an integer number (12713400).

Almost surely, 2^75220737 is an apocalyptic number.

It is an amenable number.

75220737 is a deficient number, since it is larger than the sum of its proper divisors (26486463).

75220737 is a wasteful number, since it uses less digits than its factorization.

75220737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353223.

The product of its (nonzero) digits is 20580, while the sum is 33.

The square root of 75220737 is about 8672.9889311586. The cubic root of 75220737 is about 422.1296536396.

It can be divided in two parts, 75220 and 737, that added together give a palindrome (75957).

The spelling of 75220737 in words is "seventy-five million, two hundred twenty thousand, seven hundred thirty-seven".