7125742501 has 4 divisors (see below), whose sum is σ = 7500781600. Its totient is φ = 6750703404.

The previous prime is 7125742489. The next prime is 7125742517. The reversal of 7125742501 is 1052475217.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1052475217 = 59 ⋅17838563.

It is a cyclic number.

It is not a de Polignac number, because 7125742501 - 2⁵ = 7125742469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7125442501) 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, 187519521 + ... + 187519558.

It is an arithmetic number, because the mean of its divisors is an integer number (1875195400).

Almost surely, 2^7125742501 is an apocalyptic number.

It is an amenable number.

7125742501 is a deficient number, since it is larger than the sum of its proper divisors (375039099).

7125742501 is a wasteful number, since it uses less digits than its factorization.

7125742501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375039098.

The product of its (nonzero) digits is 19600, while the sum is 34.

The square root of 7125742501 is about 84414.1131624327. The cubic root of 7125742501 is about 1924.3174057947.

The spelling of 7125742501 in words is "seven billion, one hundred twenty-five million, seven hundred forty-two thousand, five hundred one".