354521262125453 has 4 divisors (see below), whose sum is σ = 354524986613820. Its totient is φ = 354517537637088.

The previous prime is 354521262125447. The next prime is 354521262125491.

354521262125453 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 237497287436809 + 117023974688644 = 15410947^2 + 10817762^2 .

It is a cyclic number.

It is not a de Polignac number, because 354521262125453 - 2¹⁸ = 354521261863309 is a prime.

It is a super-2 number, since 2×354521262125453² (a number of 30 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 (354521262175453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1862101400 + ... + 1862291777.

It is an arithmetic number, because the mean of its divisors is an integer number (88631246653455).

Almost surely, 2^{354521262125453} is an apocalyptic number.

It is an amenable number.

354521262125453 is a deficient number, since it is larger than the sum of its proper divisors (3724488367).

354521262125453 is an equidigital number, since it uses as much as digits as its factorization.

354521262125453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3724488366.

The product of its digits is 8640000, while the sum is 50.

The spelling of 354521262125453 in words is "three hundred fifty-four trillion, five hundred twenty-one billion, two hundred sixty-two million, one hundred twenty-five thousand, four hundred fifty-three".