47952540 has 48 divisors (see below), whose sum is σ = 149187360. Its totient is φ = 12787200.

The previous prime is 47952517. The next prime is 47952551. The reversal of 47952540 is 4525974.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 47952495 and 47952504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43861 + ... + 44940.

It is an arithmetic number, because the mean of its divisors is an integer number (3108070).

Almost surely, 2^47952540 is an apocalyptic number.

It is an amenable number.

47952540 is an abundant number, since it is smaller than the sum of its proper divisors (101234820).

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

47952540 is a wasteful number, since it uses less digits than its factorization.

47952540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88819 (or 88811 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 47952540 is about 6924.7772527353. Note that the first 3 decimals coincide. The cubic root of 47952540 is about 363.3043005353.

The spelling of 47952540 in words is "forty-seven million, nine hundred fifty-two thousand, five hundred forty".