75225407 has 2 divisors, whose sum is σ = 75225408. Its totient is φ = 75225406.

The previous prime is 75225401. The next prime is 75225457. The reversal of 75225407 is 70452257.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75225407 - 2¹⁶ = 75159871 is a prime.

It is a Chen prime.

It is equal to p_4406774 and since 75225407 and 4406774 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75225401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37612703 + 37612704.

It is an arithmetic number, because the mean of its divisors is an integer number (37612704).

Almost surely, 2^75225407 is an apocalyptic number.

75225407 is a deficient number, since it is larger than the sum of its proper divisors (1).

75225407 is an equidigital number, since it uses as much as digits as its factorization.

75225407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 75225407 is about 8673.2581536583. The cubic root of 75225407 is about 422.1383892834.

The spelling of 75225407 in words is "seventy-five million, two hundred twenty-five thousand, four hundred seven".