25231055242450 has 12 divisors (see below), whose sum is σ = 46929762751050. Its totient is φ = 10092422096960.

The previous prime is 25231055242447. The next prime is 25231055242469. The reversal of 25231055242450 is 5424255013252.

It can be written as a sum of positive squares in 3 ways, for example, as 15740730916681 + 9490324325769 = 3967459^2 + 3080637^2 .

It is a super-2 number, since 2×25231055242450² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 252310552375 + ... + 252310552474.

Almost surely, 2^{25231055242450} is an apocalyptic number.

25231055242450 is a deficient number, since it is larger than the sum of its proper divisors (21698707508600).

25231055242450 is a wasteful number, since it uses less digits than its factorization.

25231055242450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504621104861 (or 504621104856 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 40.

The spelling of 25231055242450 in words is "twenty-five trillion, two hundred thirty-one billion, fifty-five million, two hundred forty-two thousand, four hundred fifty".