48121557 has 8 divisors (see below), whose sum is σ = 69995040. Its totient is φ = 29164560.

The previous prime is 48121553. The next prime is 48121607. The reversal of 48121557 is 75512184.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 48121557 - 2² = 48121553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 1458229 = 48121557 / (4 + 8 + 1 + 2 + 1 + 5 + 5 + 7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48121553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729082 + ... + 729147.

It is an arithmetic number, because the mean of its divisors is an integer number (8749380).

Almost surely, 2^48121557 is an apocalyptic number.

It is an amenable number.

48121557 is a deficient number, since it is larger than the sum of its proper divisors (21873483).

48121557 is a wasteful number, since it uses less digits than its factorization.

48121557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458243.

The product of its digits is 11200, while the sum is 33.

The square root of 48121557 is about 6936.9703041025. The cubic root of 48121557 is about 363.7306429160.

The spelling of 48121557 in words is "forty-eight million, one hundred twenty-one thousand, five hundred fifty-seven".