2152354401025 has 12 divisors (see below), whose sum is σ = 2668951091500. Its totient is φ = 1721863111680.

The previous prime is 2152354401019. The next prime is 2152354401031. The reversal of 2152354401025 is 5201044532512.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2152354401019) and next prime (2152354401031).

It can be written as a sum of positive squares in 6 ways, for example, as 23428281969 + 2128926119056 = 153063^2 + 1459084^2 .

It is not a de Polignac number, because 2152354401025 - 2³ = 2152354401017 is a prime.

It is a super-2 number, since 2×2152354401025² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1856401 + ... + 2784049.

Almost surely, 2^{2152354401025} is an apocalyptic number.

2152354401025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2152354401025 is a deficient number, since it is larger than the sum of its proper divisors (516596690475).

2152354401025 is an equidigital number, since it uses as much as digits as its factorization.

2152354401025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020468 (or 1020463 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 2152354401025 its reverse (5201044532512), we get a palindrome (7353398933537).

The spelling of 2152354401025 in words is "two trillion, one hundred fifty-two billion, three hundred fifty-four million, four hundred one thousand, twenty-five".