32625421 has 2 divisors, whose sum is σ = 32625422. Its totient is φ = 32625420.

The previous prime is 32625409. The next prime is 32625427. The reversal of 32625421 is 12452623.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21031396 + 11594025 = 4586^2 + 3405^2 .

It is an emirp because it is prime and its reverse (12452623) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32625421 - 2⁵ = 32625389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32625427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16312710 + 16312711.

It is an arithmetic number, because the mean of its divisors is an integer number (16312711).

Almost surely, 2^32625421 is an apocalyptic number.

It is an amenable number.

32625421 is a deficient number, since it is larger than the sum of its proper divisors (1).

32625421 is an equidigital number, since it uses as much as digits as its factorization.

32625421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 25.

The square root of 32625421 is about 5711.8666826179. The cubic root of 32625421 is about 319.5352008584.

The spelling of 32625421 in words is "thirty-two million, six hundred twenty-five thousand, four hundred twenty-one".