47071520 has 48 divisors (see below), whose sum is σ = 112891968. Its totient is φ = 18543360.

The previous prime is 47071517. The next prime is 47071537. The reversal of 47071520 is 2517074.

It is a super-2 number, since 2×47071520² = 4431455990220800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47071520.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8525 + ... + 12915.

It is an arithmetic number, because the mean of its divisors is an integer number (2351916).

Almost surely, 2^47071520 is an apocalyptic number.

47071520 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 47071520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56445984).

47071520 is an abundant number, since it is smaller than the sum of its proper divisors (65820448).

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

47071520 is a wasteful number, since it uses less digits than its factorization.

47071520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4473 (or 4465 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 47071520 is about 6860.8687496555. The cubic root of 47071520 is about 361.0655671863.

Adding to 47071520 its reverse (2517074), we get a palindrome (49588594).

The spelling of 47071520 in words is "forty-seven million, seventy-one thousand, five hundred twenty".