1552004231 has 4 divisors (see below), whose sum is σ = 1552085832. Its totient is φ = 1551922632.

The previous prime is 1552004213. The next prime is 1552004261. The reversal of 1552004231 is 1324002551.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1552004231 is a prime.

It is a super-2 number, since 2×1552004231² = 4817434266083802722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1552004197 and 1552004206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1552004261) 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, 4481 + ... + 55893.

It is an arithmetic number, because the mean of its divisors is an integer number (388021458).

Almost surely, 2^1552004231 is an apocalyptic number.

1552004231 is a deficient number, since it is larger than the sum of its proper divisors (81601).

1552004231 is an equidigital number, since it uses as much as digits as its factorization.

1552004231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81600.

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

The square root of 1552004231 is about 39395.4849062681. The cubic root of 1552004231 is about 1157.7931265203.

Adding to 1552004231 its reverse (1324002551), we get a palindrome (2876006782).

The spelling of 1552004231 in words is "one billion, five hundred fifty-two million, four thousand, two hundred thirty-one".