72052100 has 36 divisors (see below), whose sum is σ = 163156224. Its totient is φ = 27566880.

The previous prime is 72052093. The next prime is 72052109. The reversal of 72052100 is 125027.

It is a super-2 number, since 2×72052100² = 10383010228820000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72052109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13364 + ... + 17963.

Almost surely, 2^72052100 is an apocalyptic number.

It is an amenable number.

72052100 is an abundant number, since it is smaller than the sum of its proper divisors (91104124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72052100 is a wasteful number, since it uses less digits than its factorization.

72052100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31364 (or 31357 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 72052100 is about 8488.3508410056. The cubic root of 72052100 is about 416.1170852010.

Adding to 72052100 its reverse (125027), we get a palindrome (72177127).

The spelling of 72052100 in words is "seventy-two million, fifty-two thousand, one hundred".