1555250045 has 16 divisors (see below), whose sum is σ = 1935373440. Its totient is φ = 1198805184.

The previous prime is 1555250033. The next prime is 1555250063. The reversal of 1555250045 is 5400525551.

It is a cyclic number.

It is not a de Polignac number, because 1555250045 - 2⁸ = 1555249789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1555249993 and 1555250020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21755 + ... + 59864.

It is an arithmetic number, because the mean of its divisors is an integer number (120960840).

Almost surely, 2^1555250045 is an apocalyptic number.

It is an amenable number.

1555250045 is a deficient number, since it is larger than the sum of its proper divisors (380123395).

1555250045 is a wasteful number, since it uses less digits than its factorization.

1555250045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81764.

The product of its (nonzero) digits is 25000, while the sum is 32.

The square root of 1555250045 is about 39436.6586439571. The cubic root of 1555250045 is about 1158.5996888411.

Adding to 1555250045 its reverse (5400525551), we get a palindrome (6955775596).

The spelling of 1555250045 in words is "one billion, five hundred fifty-five million, two hundred fifty thousand, forty-five".