55790142 has 32 divisors (see below), whose sum is σ = 119162880. Its totient is φ = 17374560.

The previous prime is 55790131. The next prime is 55790153. The reversal of 55790142 is 24109755.

It is an interprime number because it is at equal distance from previous prime (55790131) and next prime (55790153).

It is a super-2 number, since 2×55790142² = 6225079888760328, which contains 22 as substring.

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, 223 + ... + 10565.

It is an arithmetic number, because the mean of its divisors is an integer number (3723840).

Almost surely, 2^55790142 is an apocalyptic number.

55790142 is an abundant number, since it is smaller than the sum of its proper divisors (63372738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55790142 is a wasteful number, since it uses less digits than its factorization.

55790142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10408.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 55790142 is about 7469.2798849688. The cubic root of 55790142 is about 382.1077289064.

Adding to 55790142 its reverse (24109755), we get a palindrome (79899897).

The spelling of 55790142 in words is "fifty-five million, seven hundred ninety thousand, one hundred forty-two".