75348021425 has 12 divisors (see below), whose sum is σ = 93764051916. Its totient is φ = 60063897600.

The previous prime is 75348021383. The next prime is 75348021443. The reversal of 75348021425 is 52412084357.

It can be written as a sum of positive squares in 6 ways, for example, as 3810304 + 75344211121 = 1952^2 + 274489^2 .

It is a de Polignac number, because none of the positive numbers 2^k-75348021425 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5355824 + ... + 5369873.

It is an arithmetic number, because the mean of its divisors is an integer number (7813670993).

Almost surely, 2^75348021425 is an apocalyptic number.

It is an amenable number.

75348021425 is a deficient number, since it is larger than the sum of its proper divisors (18416030491).

75348021425 is a wasteful number, since it uses less digits than its factorization.

75348021425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10725988 (or 10725983 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 41.

The spelling of 75348021425 in words is "seventy-five billion, three hundred forty-eight million, twenty-one thousand, four hundred twenty-five".