55251502 has 8 divisors (see below), whose sum is σ = 82956096. Its totient is φ = 27599472.

The previous prime is 55251473. The next prime is 55251503. The reversal of 55251502 is 20515255.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55251503) 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, 10398 + ... + 14785.

It is an arithmetic number, because the mean of its divisors is an integer number (10369512).

Almost surely, 2^55251502 is an apocalyptic number.

55251502 is a deficient number, since it is larger than the sum of its proper divisors (27704594).

55251502 is a wasteful number, since it uses less digits than its factorization.

55251502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26282.

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 55251502 is about 7433.1354084262. The cubic root of 55251502 is about 380.8740315117.

Adding to 55251502 its reverse (20515255), we get a palindrome (75766757).

The spelling of 55251502 in words is "fifty-five million, two hundred fifty-one thousand, five hundred two".