551655142 has 4 divisors (see below), whose sum is σ = 827482716. Its totient is φ = 275827570.

The previous prime is 551655131. The next prime is 551655157. The reversal of 551655142 is 241556155.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 551655098 and 551655107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137913784 + ... + 137913787.

It is an arithmetic number, because the mean of its divisors is an integer number (206870679).

Almost surely, 2^551655142 is an apocalyptic number.

551655142 is a deficient number, since it is larger than the sum of its proper divisors (275827574).

551655142 is a wasteful number, since it uses less digits than its factorization.

551655142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275827573.

The product of its digits is 30000, while the sum is 34.

The square root of 551655142 is about 23487.3400367091. The cubic root of 551655142 is about 820.1423221140.

The spelling of 551655142 in words is "five hundred fifty-one million, six hundred fifty-five thousand, one hundred forty-two".