48640531 has 2 divisors, whose sum is σ = 48640532. Its totient is φ = 48640530.

The previous prime is 48640517. The next prime is 48640567. The reversal of 48640531 is 13504684.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 48640531 - 2²¹ = 46543379 is a prime.

It is a super-2 number, since 2×48640531² = 4731802511923922, which contains 22 as substring.

It is a zygodrome in base 5.

It is a junction number, because it is equal to n+sod(n) for n = 48640493 and 48640502.

It is not a weakly prime, because it can be changed into another prime (48640231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24320265 + 24320266.

It is an arithmetic number, because the mean of its divisors is an integer number (24320266).

Almost surely, 2^48640531 is an apocalyptic number.

48640531 is a deficient number, since it is larger than the sum of its proper divisors (1).

48640531 is an equidigital number, since it uses as much as digits as its factorization.

48640531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 48640531 is about 6974.2763782345. The cubic root of 48640531 is about 365.0335391711.

The spelling of 48640531 in words is "forty-eight million, six hundred forty thousand, five hundred thirty-one".