65163725 has 24 divisors (see below), whose sum is σ = 91199520. Its totient is φ = 45752000.

The previous prime is 65163713. The next prime is 65163743. The reversal of 65163725 is 52736156.

It is a de Polignac number, because none of the positive numbers 2^k-65163725 is a prime.

It is a super-2 number, since 2×65163725² = 8492622111751250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3890 + ... + 12060.

It is an arithmetic number, because the mean of its divisors is an integer number (3799980).

Almost surely, 2^65163725 is an apocalyptic number.

It is an amenable number.

65163725 is a deficient number, since it is larger than the sum of its proper divisors (26035795).

65163725 is a wasteful number, since it uses less digits than its factorization.

65163725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8221 (or 8216 counting only the distinct ones).

The product of its digits is 37800, while the sum is 35.

The square root of 65163725 is about 8072.4051558380. The cubic root of 65163725 is about 402.4098791326.

The spelling of 65163725 in words is "sixty-five million, one hundred sixty-three thousand, seven hundred twenty-five".