64825507 has 2 divisors, whose sum is σ = 64825508. Its totient is φ = 64825506.

The previous prime is 64825489. The next prime is 64825513. The reversal of 64825507 is 70552846.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64825507 is a prime.

It is a super-3 number, since 3×64825507³ (a number of 24 digits) contains 333 as substring.

It is a nialpdrome in base 14.

It is not a weakly prime, because it can be changed into another prime (64825547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32412753 + 32412754.

It is an arithmetic number, because the mean of its divisors is an integer number (32412754).

Almost surely, 2^64825507 is an apocalyptic number.

64825507 is a deficient number, since it is larger than the sum of its proper divisors (1).

64825507 is an equidigital number, since it uses as much as digits as its factorization.

64825507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 64825507 is about 8051.4288793977. The cubic root of 64825507 is about 401.7124644515.

The spelling of 64825507 in words is "sixty-four million, eight hundred twenty-five thousand, five hundred seven".