553500149 has 4 divisors (see below), whose sum is σ = 560506560. Its totient is φ = 546493740.

The previous prime is 553500137. The next prime is 553500169. The reversal of 553500149 is 941005355.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 941005355 = 5 ⋅188201071.

It is a cyclic number.

It is not a de Polignac number, because 553500149 - 2¹⁶ = 553434613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553500169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3503087 + ... + 3503244.

It is an arithmetic number, because the mean of its divisors is an integer number (140126640).

Almost surely, 2^553500149 is an apocalyptic number.

It is an amenable number.

553500149 is a deficient number, since it is larger than the sum of its proper divisors (7006411).

553500149 is an equidigital number, since it uses as much as digits as its factorization.

553500149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7006410.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 553500149 is about 23526.5838786680. The cubic root of 553500149 is about 821.0556248947.

The spelling of 553500149 in words is "five hundred fifty-three million, five hundred thousand, one hundred forty-nine".