48135591 has 48 divisors (see below), whose sum is σ = 83865600. Its totient is φ = 26565840.

The previous prime is 48135587. The next prime is 48135613. The reversal of 48135591 is 19553184.

It is not a de Polignac number, because 48135591 - 2² = 48135587 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48135511) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 95446 + ... + 95948.

It is an arithmetic number, because the mean of its divisors is an integer number (1747200).

Almost surely, 2^48135591 is an apocalyptic number.

48135591 is a deficient number, since it is larger than the sum of its proper divisors (35730009).

48135591 is a wasteful number, since it uses less digits than its factorization.

48135591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561 (or 544 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 48135591 is about 6937.9817670559. The cubic root of 48135591 is about 363.7659985169.

It can be divided in two parts, 4813 and 5591, that added together give a square (10404 = 102²).

The spelling of 48135591 in words is "forty-eight million, one hundred thirty-five thousand, five hundred ninety-one".