3526012421 has 4 divisors (see below), whose sum is σ = 3621310092. Its totient is φ = 3430714752.

The previous prime is 3526012411. The next prime is 3526012453. The reversal of 3526012421 is 1242106253.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1242106253 = 137 ⋅9066469.

It can be written as a sum of positive squares in 2 ways, for example, as 1647223396 + 1878789025 = 40586^2 + 43345^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3526012421 is a prime.

It is a super-3 number, since 3×3526012421³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3526012411) 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, 47648780 + ... + 47648853.

It is an arithmetic number, because the mean of its divisors is an integer number (905327523).

Almost surely, 2^3526012421 is an apocalyptic number.

It is an amenable number.

3526012421 is a deficient number, since it is larger than the sum of its proper divisors (95297671).

3526012421 is an equidigital number, since it uses as much as digits as its factorization.

3526012421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95297670.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 3526012421 is about 59380.2359459779. The cubic root of 3526012421 is about 1522.0465882906.

Adding to 3526012421 its reverse (1242106253), we get a palindrome (4768118674).

The spelling of 3526012421 in words is "three billion, five hundred twenty-six million, twelve thousand, four hundred twenty-one".