1551025 has 12 divisors (see below), whose sum is σ = 2198272. Its totient is φ = 1063440.

The previous prime is 1551019. The next prime is 1551037. The reversal of 1551025 is 5201551.

It is not a de Polignac number, because 1551025 - 2⁵ = 1550993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1550993 and 1551011.

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, 4257 + ... + 4606.

2^1551025 is an apocalyptic number.

It is an amenable number.

1551025 is a deficient number, since it is larger than the sum of its proper divisors (647247).

1551025 is an equidigital number, since it uses as much as digits as its factorization.

1551025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8880 (or 8875 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 1551025 is about 1245.4015416724. The cubic root of 1551025 is about 115.7549573608.

Adding to 1551025 its reverse (5201551), we get a palindrome (6752576).

It can be divided in two parts, 15 and 51025, that added together give a triangular number (51040 = T₃₁₉).

The spelling of 1551025 in words is "one million, five hundred fifty-one thousand, twenty-five".