82372551 has 8 divisors (see below), whose sum is σ = 109878384. Its totient is φ = 54890880.

The previous prime is 82372541. The next prime is 82372561. The reversal of 82372551 is 15527328.

It is an interprime number because it is at equal distance from previous prime (82372541) and next prime (82372561).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82372551 - 2¹⁷ = 82241479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82372541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4591 + ... + 13631.

It is an arithmetic number, because the mean of its divisors is an integer number (13734798).

Almost surely, 2^82372551 is an apocalyptic number.

82372551 is a deficient number, since it is larger than the sum of its proper divisors (27505833).

82372551 is a wasteful number, since it uses less digits than its factorization.

82372551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12081.

The product of its digits is 16800, while the sum is 33.

The square root of 82372551 is about 9075.9325140726. The cubic root of 82372551 is about 435.1050981359.

Adding to 82372551 its reverse (15527328), we get a palindrome (97899879).

The spelling of 82372551 in words is "eighty-two million, three hundred seventy-two thousand, five hundred fifty-one".