1552550155 has 32 divisors (see below), whose sum is σ = 2070331200. Its totient is φ = 1110246912.

The previous prime is 1552550149. The next prime is 1552550159. The reversal of 1552550155 is 5510552551.

It is a cyclic number.

It is not a de Polignac number, because 1552550155 - 2⁵ = 1552550123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1552550155.

It is not an unprimeable number, because it can be changed into a prime (1552550159) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 549336 + ... + 552154.

It is an arithmetic number, because the mean of its divisors is an integer number (64697850).

Almost surely, 2^1552550155 is an apocalyptic number.

1552550155 is a deficient number, since it is larger than the sum of its proper divisors (517781045).

1552550155 is a wasteful number, since it uses less digits than its factorization.

1552550155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3103.

The product of its (nonzero) digits is 31250, while the sum is 34.

The square root of 1552550155 is about 39402.4130606236. The cubic root of 1552550155 is about 1157.9288634695.

The spelling of 1552550155 in words is "one billion, five hundred fifty-two million, five hundred fifty thousand, one hundred fifty-five".