48985831 has 2 divisors, whose sum is σ = 48985832. Its totient is φ = 48985830.

The previous prime is 48985813. The next prime is 48985877. The reversal of 48985831 is 13858984.

Together with previous prime (48985813) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (48985877) can be obtained adding 48985831 to its sum of digits (46).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 48985831 - 2¹³ = 48977639 is a prime.

It is a super-2 number, since 2×48985831² = 4799223277521122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48985631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24492915 + 24492916.

It is an arithmetic number, because the mean of its divisors is an integer number (24492916).

Almost surely, 2^48985831 is an apocalyptic number.

48985831 is a deficient number, since it is larger than the sum of its proper divisors (1).

48985831 is an equidigital number, since it uses as much as digits as its factorization.

48985831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 276480, while the sum is 46.

The square root of 48985831 is about 6998.9878553974. The cubic root of 48985831 is about 365.8952963758.

It can be divided in two parts, 489 and 85831, that added together give a triangular number (86320 = T₄₁₅).

The spelling of 48985831 in words is "forty-eight million, nine hundred eighty-five thousand, eight hundred thirty-one".