115225352550421 has 8 divisors (see below), whose sum is σ = 116710101086040. Its totient is φ = 113744828051712.

The previous prime is 115225352550403. The next prime is 115225352550431. The reversal of 115225352550421 is 124055253522511.

It can be written as a sum of positive squares in 4 ways, for example, as 7189825518225 + 108035527032196 = 2681385^2 + 10394014^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115225352550421 - 2⁷ = 115225352550293 is a prime.

It is a super-2 number, since 2×115225352550421² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115225352550431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1055954320 + ... + 1056063433.

It is an arithmetic number, because the mean of its divisors is an integer number (14588762635755).

Almost surely, 2^{115225352550421} is an apocalyptic number.

It is an amenable number.

115225352550421 is a deficient number, since it is larger than the sum of its proper divisors (1484748535619).

115225352550421 is an equidigital number, since it uses as much as digits as its factorization.

115225352550421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112018455.

The product of its (nonzero) digits is 600000, while the sum is 43.

The spelling of 115225352550421 in words is "one hundred fifteen trillion, two hundred twenty-five billion, three hundred fifty-two million, five hundred fifty thousand, four hundred twenty-one".