55402035040 has 48 divisors (see below), whose sum is σ = 142786158480. Its totient is φ = 20146193920.

The previous prime is 55402035023. The next prime is 55402035043. The reversal of 55402035040 is 4053020455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55402035043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15737455 + ... + 15740974.

It is an arithmetic number, because the mean of its divisors is an integer number (2974711635).

Almost surely, 2^55402035040 is an apocalyptic number.

It is an amenable number.

55402035040 is an abundant number, since it is smaller than the sum of its proper divisors (87384123440).

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

55402035040 is a wasteful number, since it uses less digits than its factorization.

55402035040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31478455 (or 31478447 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

Adding to 55402035040 its reverse (4053020455), we get a palindrome (59455055495).

The spelling of 55402035040 in words is "fifty-five billion, four hundred two million, thirty-five thousand, forty".