48721537 has 16 divisors (see below), whose sum is σ = 52272000. Its totient is φ = 45327744.

The previous prime is 48721523. The next prime is 48721573. The reversal of 48721537 is 73512784.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48721537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 48721496 and 48721505.

It is not an unprimeable number, because it can be changed into a prime (48721577) 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, 110764 + ... + 111202.

It is an arithmetic number, because the mean of its divisors is an integer number (3267000).

Almost surely, 2^48721537 is an apocalyptic number.

It is an amenable number.

48721537 is a deficient number, since it is larger than the sum of its proper divisors (3550463).

48721537 is a wasteful number, since it uses less digits than its factorization.

48721537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600.

The product of its digits is 47040, while the sum is 37.

The square root of 48721537 is about 6980.0814465162. The cubic root of 48721537 is about 365.2360692161.

The spelling of 48721537 in words is "forty-eight million, seven hundred twenty-one thousand, five hundred thirty-seven".