7125521948 has 12 divisors (see below), whose sum is σ = 12503096760. Its totient is φ = 3553208592.

The previous prime is 7125521947. The next prime is 7125521951. The reversal of 7125521948 is 8491255217.

It is a junction number, because it is equal to n+sod(n) for n = 7125521899 and 7125521908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7125521947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2386418 + ... + 2389401.

It is an arithmetic number, because the mean of its divisors is an integer number (1041924730).

Almost surely, 2^7125521948 is an apocalyptic number.

It is an amenable number.

7125521948 is a deficient number, since it is larger than the sum of its proper divisors (5377574812).

7125521948 is a wasteful number, since it uses less digits than its factorization.

7125521948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4776196 (or 4776194 counting only the distinct ones).

The product of its digits is 201600, while the sum is 44.

The square root of 7125521948 is about 84412.8067771710. The cubic root of 7125521948 is about 1924.2975520342.

The spelling of 7125521948 in words is "seven billion, one hundred twenty-five million, five hundred twenty-one thousand, nine hundred forty-eight".