71452500 has 120 divisors (see below), whose sum is σ = 238273728. Its totient is φ = 16320000.

The previous prime is 71452477. The next prime is 71452501. The reversal of 71452500 is 525417.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71452501) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 51820 + ... + 53180.

Almost surely, 2^71452500 is an apocalyptic number.

71452500 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71452500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119136864).

71452500 is an abundant number, since it is smaller than the sum of its proper divisors (166821228).

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

71452500 is a wasteful number, since it uses less digits than its factorization.

71452500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395 (or 1378 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 71452500 is about 8452.9580621224. The cubic root of 71452500 is about 414.9595934918.

Adding to 71452500 its reverse (525417), we get a palindrome (71977917).

The spelling of 71452500 in words is "seventy-one million, four hundred fifty-two thousand, five hundred".