1552906 has 4 divisors (see below), whose sum is σ = 2329362. Its totient is φ = 776452.

The previous prime is 1552879. The next prime is 1552909. The reversal of 1552906 is 6092551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6092551 = 2281 ⋅2671.

It can be written as a sum of positive squares in only one way, i.e., 1083681 + 469225 = 1041^2 + 685^2 .

It is not an unprimeable number, because it can be changed into a prime (1552909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 388225 + ... + 388228.

2^1552906 is an apocalyptic number.

1552906 is a deficient number, since it is larger than the sum of its proper divisors (776456).

1552906 is an equidigital number, since it uses as much as digits as its factorization.

1552906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776455.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 1552906 is about 1246.1564909754. The cubic root of 1552906 is about 115.8017322602.

The spelling of 1552906 in words is "one million, five hundred fifty-two thousand, nine hundred six".