82375557 has 16 divisors (see below), whose sum is σ = 126868032. Its totient is φ = 46987520.

The previous prime is 82375547. The next prime is 82375567. The reversal of 82375557 is 75557328.

It is an interprime number because it is at equal distance from previous prime (82375547) and next prime (82375567).

It is a cyclic number.

It is not a de Polignac number, because 82375557 - 2⁶ = 82375493 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82375547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72858 + ... + 73979.

It is an arithmetic number, because the mean of its divisors is an integer number (7929252).

Almost surely, 2^82375557 is an apocalyptic number.

It is an amenable number.

82375557 is a deficient number, since it is larger than the sum of its proper divisors (44492475).

82375557 is a wasteful number, since it uses less digits than its factorization.

82375557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146868.

The product of its digits is 294000, while the sum is 42.

The square root of 82375557 is about 9076.0981153798. The cubic root of 82375557 is about 435.1103907971.

The spelling of 82375557 in words is "eighty-two million, three hundred seventy-five thousand, five hundred fifty-seven".