9526451385025 has 27 divisors (see below), whose sum is σ = 11901075103593. Its totient is φ = 7564628865600.

The previous prime is 9526451385007. The next prime is 9526451385049. The reversal of 9526451385025 is 5205831546259.

The square root of 9526451385025 is 3086495.

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

It can be written as a sum of positive squares in 4 ways, for example, as 615247278129 + 8911204106896 = 784377^2 + 2985164^2 .

It is not a de Polignac number, because 9526451385025 - 2¹⁷ = 9526451253953 is a prime.

It is a Duffinian number.

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, 2145111805 + ... + 2145116245.

Almost surely, 2^{9526451385025} is an apocalyptic number.

9526451385025 is the 3086495-th square number.

9526451385025 is the 1543248-th centered octagonal number.

It is an amenable number.

9526451385025 is a deficient number, since it is larger than the sum of its proper divisors (2374623718568).

9526451385025 is an frugal number, since it uses more digits than its factorization.

9526451385025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9170 (or 4585 counting only the distinct ones).

The product of its (nonzero) digits is 12960000, while the sum is 55.

The spelling of 9526451385025 in words is "nine trillion, five hundred twenty-six billion, four hundred fifty-one million, three hundred eighty-five thousand, twenty-five".