402112553 has 4 divisors (see below), whose sum is σ = 408928080. Its totient is φ = 395297028.

The previous prime is 402112531. The next prime is 402112603. The reversal of 402112553 is 355211204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 402112553 - 2¹⁰ = 402111529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402112853) 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, 3407675 + ... + 3407792.

It is an arithmetic number, because the mean of its divisors is an integer number (102232020).

Almost surely, 2^402112553 is an apocalyptic number.

It is an amenable number.

402112553 is a deficient number, since it is larger than the sum of its proper divisors (6815527).

402112553 is an equidigital number, since it uses as much as digits as its factorization.

402112553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6815526.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 402112553 is about 20052.7442760336. The cubic root of 402112553 is about 738.1011415106.

Adding to 402112553 its reverse (355211204), we get a palindrome (757323757).

The spelling of 402112553 in words is "four hundred two million, one hundred twelve thousand, five hundred fifty-three".