55242051 has 16 divisors (see below), whose sum is σ = 74743968. Its totient is φ = 36288000.

The previous prime is 55242043. The next prime is 55242107. The reversal of 55242051 is 15024255.

It is a happy number.

It is not a de Polignac number, because 55242051 - 2³ = 55242043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55242001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101841 + ... + 102381.

It is an arithmetic number, because the mean of its divisors is an integer number (4671498).

Almost surely, 2^55242051 is an apocalyptic number.

55242051 is a deficient number, since it is larger than the sum of its proper divisors (19501917).

55242051 is a wasteful number, since it uses less digits than its factorization.

55242051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 55242051 is about 7432.4996468214. The cubic root of 55242051 is about 380.8523135758.

The spelling of 55242051 in words is "fifty-five million, two hundred forty-two thousand, fifty-one".