7420961025 has 27 divisors (see below), whose sum is σ = 13294080579. Its totient is φ = 3957156720.

The previous prime is 7420961011. The next prime is 7420961069. The reversal of 7420961025 is 5201690247.

The square root of 7420961025 is 86145.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2671545969 + 4749415056 = 51687^2 + 68916^2 .

It is not a de Polignac number, because 7420961025 - 2¹¹ = 7420958977 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1289304 + ... + 1295046.

Almost surely, 2^7420961025 is an apocalyptic number.

7420961025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

7420961025 is the 86145-th square number.

7420961025 is the 43073-rd centered octagonal number.

It is an amenable number.

7420961025 is a deficient number, since it is larger than the sum of its proper divisors (5873119554).

7420961025 is an frugal number, since it uses more digits than its factorization.

7420961025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11502 (or 5751 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The cubic root of 7420961025 is about 1950.5333649486.

Multiplying 7420961025 by its sum of digits (36), we get a square (267154596900 = 516870²).

The spelling of 7420961025 in words is "seven billion, four hundred twenty million, nine hundred sixty-one thousand, twenty-five".