47500000 has 96 divisors (see below), whose sum is σ = 123046560. Its totient is φ = 18000000.

The previous prime is 47499979. The next prime is 47500001. The reversal of 47500000 is 574.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47500001) 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, 2499991 + ... + 2500009.

It is an arithmetic number, because the mean of its divisors is an integer number (1281735).

Almost surely, 2^47500000 is an apocalyptic number.

47500000 is a gapful number since it is divisible by the number (40) 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 47500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61523280).

47500000 is an abundant number, since it is smaller than the sum of its proper divisors (75546560).

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

47500000 is an frugal number, since it uses more digits than its factorization.

47500000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64 (or 26 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 16.

The square root of 47500000 is about 6892.0243760451. The cubic root of 47500000 is about 362.1578221721.

Adding to 47500000 its reverse (574), we get a palindrome (47500574).

The spelling of 47500000 in words is "forty-seven million, five hundred thousand".