67725401 has 2 divisors, whose sum is σ = 67725402. Its totient is φ = 67725400.

The previous prime is 67725391. The next prime is 67725403. The reversal of 67725401 is 10452776.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65593801 + 2131600 = 8099^2 + 1460^2 .

It is a cyclic number.

It is not a de Polignac number, because 67725401 - 2⁶ = 67725337 is a prime.

It is a super-2 number, since 2×67725401² = 9173459881221602, which contains 22 as substring.

Together with 67725403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (67725403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33862700 + 33862701.

It is an arithmetic number, because the mean of its divisors is an integer number (33862701).

Almost surely, 2^67725401 is an apocalyptic number.

It is an amenable number.

67725401 is a deficient number, since it is larger than the sum of its proper divisors (1).

67725401 is an equidigital number, since it uses as much as digits as its factorization.

67725401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 67725401 is about 8229.5443980818. The cubic root of 67725401 is about 407.6153481784.

The spelling of 67725401 in words is "sixty-seven million, seven hundred twenty-five thousand, four hundred one".