1552661025 has 12 divisors (see below), whose sum is σ = 2567066352. Its totient is φ = 828085840.

The previous prime is 1552661003. The next prime is 1552661039. The reversal of 1552661025 is 5201662551.

It is not a de Polignac number, because 1552661025 - 2⁶ = 1552660961 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10350999 + ... + 10351148.

It is an arithmetic number, because the mean of its divisors is an integer number (213922196).

Almost surely, 2^1552661025 is an apocalyptic number.

1552661025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1552661025 is a deficient number, since it is larger than the sum of its proper divisors (1014405327).

1552661025 is a wasteful number, since it uses less digits than its factorization.

1552661025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20702160 (or 20702155 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 1552661025 is about 39403.8199290373. The cubic root of 1552661025 is about 1157.9564259751.

The spelling of 1552661025 in words is "one billion, five hundred fifty-two million, six hundred sixty-one thousand, twenty-five".