48721572 has 18 divisors (see below), whose sum is σ = 123157398. Its totient is φ = 16240512.

The previous prime is 48721523. The next prime is 48721573. The reversal of 48721572 is 27512784.

48721572 is a `hidden beast` number, since 4 + 87 + 2 + 1 + 572 = 666.

It can be written as a sum of positive squares in only one way, i.e., 25160256 + 23561316 = 5016^2 + 4854^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1353377 = 48721572 / (4 + 8 + 7 + 2 + 1 + 5 + 7 + 2).

It is not an unprimeable number, because it can be changed into a prime (48721573) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 676653 + ... + 676724.

Almost surely, 2^48721572 is an apocalyptic number.

It is an amenable number.

48721572 is an abundant number, since it is smaller than the sum of its proper divisors (74435826).

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

48721572 is a wasteful number, since it uses less digits than its factorization.

48721572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353387 (or 1353382 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 48721572 is about 6980.0839536498. The cubic root of 48721572 is about 365.2361566741.

It can be divided in two parts, 4 and 8721572, that added together give a triangular number (8721576 = T₄₁₇₆).

The spelling of 48721572 in words is "forty-eight million, seven hundred twenty-one thousand, five hundred seventy-two".