1552749222 has 16 divisors (see below), whose sum is σ = 3106351872. Its totient is φ = 517440840.

The previous prime is 1552749203. The next prime is 1552749227. The reversal of 1552749222 is 2229472551.

It is a super-2 number, since 2×1552749222² = 4822060292843210568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1552749227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10554 + ... + 56717.

It is an arithmetic number, because the mean of its divisors is an integer number (194146992).

Almost surely, 2^1552749222 is an apocalyptic number.

1552749222 is an abundant number, since it is smaller than the sum of its proper divisors (1553602650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1552749222 is a wasteful number, since it uses less digits than its factorization.

1552749222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71123.

The product of its digits is 100800, while the sum is 39.

The square root of 1552749222 is about 39404.9390559102. The cubic root of 1552749222 is about 1157.9783509902.

The spelling of 1552749222 in words is "one billion, five hundred fifty-two million, seven hundred forty-nine thousand, two hundred twenty-two".