1552552145 has 8 divisors (see below), whose sum is σ = 1863401856. Its totient is φ = 1241815536.

The previous prime is 1552552123. The next prime is 1552552147. The reversal of 1552552145 is 5412552551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1552552145 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1552552147) 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, 5624 + ... + 56006.

It is an arithmetic number, because the mean of its divisors is an integer number (232925232).

Almost surely, 2^1552552145 is an apocalyptic number.

It is an amenable number.

1552552145 is a deficient number, since it is larger than the sum of its proper divisors (310849711).

1552552145 is an equidigital number, since it uses as much as digits as its factorization.

1552552145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56551.

The product of its digits is 50000, while the sum is 35.

The square root of 1552552145 is about 39402.4383128760. The cubic root of 1552552145 is about 1157.9293581991.

The spelling of 1552552145 in words is "one billion, five hundred fifty-two million, five hundred fifty-two thousand, one hundred forty-five".