1553045415 has 16 divisors (see below), whose sum is σ = 2485367808. Its totient is φ = 828125856.

The previous prime is 1553045339. The next prime is 1553045477. The reversal of 1553045415 is 5145403551.

It is not a de Polignac number, because 1553045415 - 2⁸ = 1553045159 is a prime.

It is a super-2 number, since 2×1553045415² = 4823900122105044450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123342 + ... + 135348.

It is an arithmetic number, because the mean of its divisors is an integer number (155335488).

Almost surely, 2^1553045415 is an apocalyptic number.

1553045415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1553045415 is a deficient number, since it is larger than the sum of its proper divisors (932322393).

1553045415 is a wasteful number, since it uses less digits than its factorization.

1553045415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20638.

The product of its (nonzero) digits is 30000, while the sum is 33.

The square root of 1553045415 is about 39408.6971999837. The cubic root of 1553045415 is about 1158.0519759454.

Adding to 1553045415 its reverse (5145403551), we get a palindrome (6698448966).

The spelling of 1553045415 in words is "one billion, five hundred fifty-three million, forty-five thousand, four hundred fifteen".