552401023531 has 4 divisors (see below), whose sum is σ = 631315455472. Its totient is φ = 473486591592.

The previous prime is 552401023481. The next prime is 552401023543. The reversal of 552401023531 is 135320104255.

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

It is not a de Polignac number, because 552401023531 - 2⁷ = 552401023403 is a prime.

It is a super-2 number, since 2×552401023531² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 552401023493 and 552401023502.

It is not an unprimeable number, because it can be changed into a prime (552401021531) 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, 39457215960 + ... + 39457215973.

It is an arithmetic number, because the mean of its divisors is an integer number (157828863868).

Almost surely, 2^552401023531 is an apocalyptic number.

552401023531 is a deficient number, since it is larger than the sum of its proper divisors (78914431941).

552401023531 is an equidigital number, since it uses as much as digits as its factorization.

552401023531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78914431940.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 552401023531 its reverse (135320104255), we get a palindrome (687721127786).

The spelling of 552401023531 in words is "five hundred fifty-two billion, four hundred one million, twenty-three thousand, five hundred thirty-one".