724192490025 has 45 divisors (see below), whose sum is σ = 1341525768583. Its totient is φ = 386215570800.

The previous prime is 724192489991. The next prime is 724192490033. The reversal of 724192490025 is 520094291427.

The square root of 724192490025 is 850995.

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

724192490025 is a `hidden beast` number, since 72 + 4 + 1 + 92 + 490 + 0 + 2 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 260709296409 + 463483193616 = 510597^2 + 680796^2 .

It is a tau number, because it is divible by the number of its divisors (45).

It is not a de Polignac number, because 724192490025 - 2¹⁵ = 724192457257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 38285320 + ... + 38304230.

Almost surely, 2^724192490025 is an apocalyptic number.

724192490025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

724192490025 is the 850995-th square number.

724192490025 is the 425498-th centered octagonal number.

It is an amenable number.

724192490025 is a deficient number, since it is larger than the sum of its proper divisors (617333278558).

724192490025 is an frugal number, since it uses more digits than its factorization.

724192490025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37844 (or 18919 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 724192490025 in words is "seven hundred twenty-four billion, one hundred ninety-two million, four hundred ninety thousand, twenty-five".