552621572 has 6 divisors (see below), whose sum is σ = 967087758. Its totient is φ = 276310784.

The previous prime is 552621571. The next prime is 552621581. The reversal of 552621572 is 275126255.

It can be written as a sum of positive squares in only one way, i.e., 428655616 + 123965956 = 20704^2 + 11134^2 .

It is not an unprimeable number, because it can be changed into a prime (552621571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69077693 + ... + 69077700.

It is an arithmetic number, because the mean of its divisors is an integer number (161181293).

Almost surely, 2^552621572 is an apocalyptic number.

It is an amenable number.

552621572 is a deficient number, since it is larger than the sum of its proper divisors (414466186).

552621572 is a wasteful number, since it uses less digits than its factorization.

552621572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138155397 (or 138155395 counting only the distinct ones).

The product of its digits is 42000, while the sum is 35.

The square root of 552621572 is about 23507.9044578627. The cubic root of 552621572 is about 820.6209712332.

The spelling of 552621572 in words is "five hundred fifty-two million, six hundred twenty-one thousand, five hundred seventy-two".