66792825 has 36 divisors (see below), whose sum is σ = 130513968. Its totient is φ = 32383200.

The previous prime is 66792823. The next prime is 66792827. The reversal of 66792825 is 52829766.

It is an interprime number because it is at equal distance from previous prime (66792823) and next prime (66792827).

It is not a de Polignac number, because 66792825 - 2¹ = 66792823 is a prime.

It is a super-2 number, since 2×66792825² = 8922562942961250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (66792823) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11019 + ... + 15968.

It is an arithmetic number, because the mean of its divisors is an integer number (3625388).

Almost surely, 2^66792825 is an apocalyptic number.

It is an amenable number.

66792825 is a deficient number, since it is larger than the sum of its proper divisors (63721143).

66792825 is a wasteful number, since it uses less digits than its factorization.

66792825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27014 (or 27006 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 66792825 is about 8172.6877463904. The cubic root of 66792825 is about 405.7357453568.

The spelling of 66792825 in words is "sixty-six million, seven hundred ninety-two thousand, eight hundred twenty-five".