48918531 has 16 divisors (see below), whose sum is σ = 66051584. Its totient is φ = 32202144.

The previous prime is 48918517. The next prime is 48918547. The reversal of 48918531 is 13581984.

It is not a de Polignac number, because 48918531 - 2⁹ = 48918019 is a prime.

It is a super-2 number, since 2×48918531² = 4786045350395922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 48918531.

It is not an unprimeable number, because it can be changed into a prime (48910531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133110 + ... + 133476.

It is an arithmetic number, because the mean of its divisors is an integer number (4128224).

Almost surely, 2^48918531 is an apocalyptic number.

48918531 is a deficient number, since it is larger than the sum of its proper divisors (17133053).

48918531 is a wasteful number, since it uses less digits than its factorization.

48918531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810.

The product of its digits is 34560, while the sum is 39.

The square root of 48918531 is about 6994.1783648975. The cubic root of 48918531 is about 365.7276557975.

The spelling of 48918531 in words is "forty-eight million, nine hundred eighteen thousand, five hundred thirty-one".