7161531025 has 24 divisors (see below), whose sum is σ = 9703941408. Its totient is φ = 5199600000.

The previous prime is 7161531011. The next prime is 7161531029. The reversal of 7161531025 is 5201351617.

It is not a de Polignac number, because 7161531025 - 2⁷ = 7161530897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7161531029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143610 + ... + 186940.

It is an arithmetic number, because the mean of its divisors is an integer number (404330892).

Almost surely, 2^7161531025 is an apocalyptic number.

It is an amenable number.

7161531025 is a deficient number, since it is larger than the sum of its proper divisors (2542410383).

7161531025 is a wasteful number, since it uses less digits than its factorization.

7161531025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43953 (or 43948 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 7161531025 is about 84625.8295380317. The cubic root of 7161531025 is about 1927.5336088611.

The spelling of 7161531025 in words is "seven billion, one hundred sixty-one million, five hundred thirty-one thousand, twenty-five".