3261400553 has 4 divisors (see below), whose sum is σ = 3291881040. Its totient is φ = 3230920068.

The previous prime is 3261400501. The next prime is 3261400567. The reversal of 3261400553 is 3550041623.

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 3261400553 - 2⁸ = 3261400297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3267400553) 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, 15240083 + ... + 15240296.

It is an arithmetic number, because the mean of its divisors is an integer number (822970260).

Almost surely, 2^3261400553 is an apocalyptic number.

It is an amenable number.

3261400553 is a deficient number, since it is larger than the sum of its proper divisors (30480487).

3261400553 is a wasteful number, since it uses less digits than its factorization.

3261400553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30480486.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 3261400553 is about 57108.6731854278. The cubic root of 3261400553 is about 1482.9780177215.

The spelling of 3261400553 in words is "three billion, two hundred sixty-one million, four hundred thousand, five hundred fifty-three".