75325501 has 2 divisors, whose sum is σ = 75325502. Its totient is φ = 75325500.

The previous prime is 75325489. The next prime is 75325507. The reversal of 75325501 is 10552357.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42263001 + 33062500 = 6501^2 + 5750^2 .

It is an emirp because it is prime and its reverse (10552357) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75325501 - 2⁵ = 75325469 is a prime.

It is a super-2 number, since 2×75325501² = 11347862201802002, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 75325501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75325507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37662750 + 37662751.

It is an arithmetic number, because the mean of its divisors is an integer number (37662751).

Almost surely, 2^75325501 is an apocalyptic number.

It is an amenable number.

75325501 is a deficient number, since it is larger than the sum of its proper divisors (1).

75325501 is an equidigital number, since it uses as much as digits as its factorization.

75325501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 75325501 is about 8679.0265007085. The cubic root of 75325501 is about 422.3255370162.

Adding to 75325501 its reverse (10552357), we get a palindrome (85877858).

The spelling of 75325501 in words is "seventy-five million, three hundred twenty-five thousand, five hundred one".