47201520 has 160 divisors (see below), whose sum is σ = 161989632. Its totient is φ = 11309056.

The previous prime is 47201513. The next prime is 47201521. The reversal of 47201520 is 2510274.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47201521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93589 + ... + 94091.

Almost surely, 2^47201520 is an apocalyptic number.

47201520 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 47201520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80994816).

47201520 is an abundant number, since it is smaller than the sum of its proper divisors (114788112).

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

47201520 is a wasteful number, since it uses less digits than its factorization.

47201520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559 (or 553 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 47201520 is about 6870.3362363133. The cubic root of 47201520 is about 361.3976531908.

Adding to 47201520 its reverse (2510274), we get a palindrome (49711794).

The spelling of 47201520 in words is "forty-seven million, two hundred one thousand, five hundred twenty".